diff --git a/en/src/basic-types/char-bool-unit.md b/en/src/basic-types/char-bool-unit.md
index cb059d85..849fb7fe 100644
--- a/en/src/basic-types/char-bool-unit.md
+++ b/en/src/basic-types/char-bool-unit.md
@@ -97,4 +97,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it
diff --git a/en/src/basic-types/functions.md b/en/src/basic-types/functions.md
index b8a403d5..7aa7f5ab 100644
--- a/en/src/basic-types/functions.md
+++ b/en/src/basic-types/functions.md
@@ -98,4 +98,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/basic-types/functions.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/basic-types/functions.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/basic-types/numbers.md b/en/src/basic-types/numbers.md
index 51c7d0df..2415fc13 100644
--- a/en/src/basic-types/numbers.md
+++ b/en/src/basic-types/numbers.md
@@ -183,4 +183,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/basic-types/numbers.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/basic-types/numbers.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/basic-types/statements-expressions.md b/en/src/basic-types/statements-expressions.md
index 1bd07e77..91409645 100644
--- a/en/src/basic-types/statements-expressions.md
+++ b/en/src/basic-types/statements-expressions.md
@@ -63,8 +63,8 @@ fn main() {
 }
 
 fn sum(x: i32, y: i32) -> i32 {
-    x + y
+    x + y;
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it
diff --git a/en/src/collections/string.md b/en/src/collections/string.md
index 6592c451..931c8e68 100644
--- a/en/src/collections/string.md
+++ b/en/src/collections/string.md
@@ -203,4 +203,4 @@ fn main() {
 ### Common methods
 More exercises of String methods can be found [here](../std/String.md).
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/compound-types/array.md b/en/src/compound-types/array.md
index 9833ec58..0c55cdc2 100644
--- a/en/src/compound-types/array.md
+++ b/en/src/compound-types/array.md
@@ -99,4 +99,4 @@ fn main() {
 
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/array.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/array.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/compound-types/enum.md b/en/src/compound-types/enum.md
index 056e5775..32e8ec24 100644
--- a/en/src/compound-types/enum.md
+++ b/en/src/compound-types/enum.md
@@ -208,4 +208,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/enum.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/enum.md) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/compound-types/slice.md b/en/src/compound-types/slice.md
index 152e61c0..e963734d 100644
--- a/en/src/compound-types/slice.md
+++ b/en/src/compound-types/slice.md
@@ -97,4 +97,4 @@ fn first_letter(s: &str) -> &str {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/slice.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/slice.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/compound-types/string.md b/en/src/compound-types/string.md
index 6760b6ad..8cc71688 100644
--- a/en/src/compound-types/string.md
+++ b/en/src/compound-types/string.md
@@ -264,4 +264,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/string.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/string.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/compound-types/struct.md b/en/src/compound-types/struct.md
index 924a547e..5a975ffe 100644
--- a/en/src/compound-types/struct.md
+++ b/en/src/compound-types/struct.md
@@ -228,4 +228,4 @@ fn main() {
 } 
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/struct.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/struct.md) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/compound-types/tuple.md b/en/src/compound-types/tuple.md
index 1861797e..5c9eec2a 100644
--- a/en/src/compound-types/tuple.md
+++ b/en/src/compound-types/tuple.md
@@ -86,4 +86,4 @@ fn sum_multiply(nums: (i32, i32)) -> (i32, i32) {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/tuple.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/compound-types/tuple.md) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/fight-compiler/borrowing.md b/en/src/fight-compiler/borrowing.md
index 98467d3b..b1b543cf 100644
--- a/en/src/fight-compiler/borrowing.md
+++ b/en/src/fight-compiler/borrowing.md
@@ -27,4 +27,4 @@ impl test {
 
 fn main() {}
 ```
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/fight-compiler/borrowing.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/fight-compiler/borrowing.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/flow-control.md b/en/src/flow-control.md
index a2496100..80fe7be9 100644
--- a/en/src/flow-control.md
+++ b/en/src/flow-control.md
@@ -256,4 +256,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/formatted-output/debug-display.md b/en/src/formatted-output/debug-display.md
index 686dfc90..224d2943 100644
--- a/en/src/formatted-output/debug-display.md
+++ b/en/src/formatted-output/debug-display.md
@@ -152,4 +152,4 @@ fn main() {
 ```
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/debug-display.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/debug-display.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/formatted-output/formatting.md b/en/src/formatted-output/formatting.md
index 1d6b2741..22b5adff 100644
--- a/en/src/formatted-output/formatting.md
+++ b/en/src/formatted-output/formatting.md
@@ -181,4 +181,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/formatting.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/formatting.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/formatted-output/println.md b/en/src/formatted-output/println.md
index 34d483b0..a43b85ed 100644
--- a/en/src/formatted-output/println.md
+++ b/en/src/formatted-output/println.md
@@ -37,4 +37,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/println.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/formatted-output/println.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/functional-programing/closure.md b/en/src/functional-programing/closure.md
index f0c8f9fa..753ee232 100644
--- a/en/src/functional-programing/closure.md
+++ b/en/src/functional-programing/closure.md
@@ -433,4 +433,4 @@ fn call_with_different_values() {
     assert_eq!(v2, 1);
 }
 ```
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/closure.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/closure.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/functional-programing/iterator.md b/en/src/functional-programing/iterator.md
index 799bc979..f38d6c85 100644
--- a/en/src/functional-programing/iterator.md
+++ b/en/src/functional-programing/iterator.md
@@ -351,4 +351,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/iterator.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/functional-programing/iterator.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/generics-traits/advanced-traits.md b/en/src/generics-traits/advanced-traits.md
index 7355deaa..fca36b07 100644
--- a/en/src/generics-traits/advanced-traits.md
+++ b/en/src/generics-traits/advanced-traits.md
@@ -276,4 +276,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it :)
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it :)
\ No newline at end of file
diff --git a/en/src/generics-traits/const-generics.md b/en/src/generics-traits/const-generics.md
index 9546d42a..9f53d9b9 100644
--- a/en/src/generics-traits/const-generics.md
+++ b/en/src/generics-traits/const-generics.md
@@ -142,4 +142,4 @@ pub trait IsTrue {}
 impl IsTrue for Assert<true> {}
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/const-generics.md)(under the solutions path), but only use it when you need it :)
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/const-generics.md) (under the solutions path), but only use it when you need it :)
\ No newline at end of file
diff --git a/en/src/generics-traits/generics.md b/en/src/generics-traits/generics.md
index f93da44b..4c96135e 100644
--- a/en/src/generics-traits/generics.md
+++ b/en/src/generics-traits/generics.md
@@ -152,5 +152,5 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/generics.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/generics.md) (under the solutions path), but only use it when you need it
 
diff --git a/en/src/generics-traits/trait-object.md b/en/src/generics-traits/trait-object.md
index 3c7a565a..14e22056 100644
--- a/en/src/generics-traits/trait-object.md
+++ b/en/src/generics-traits/trait-object.md
@@ -226,4 +226,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/trait-object.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/trait-object.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/generics-traits/traits.md b/en/src/generics-traits/traits.md
index 40f669c7..717ad8d3 100644
--- a/en/src/generics-traits/traits.md
+++ b/en/src/generics-traits/traits.md
@@ -469,4 +469,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/traits.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/generics-traits/traits.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/lifetime/advance.md b/en/src/lifetime/advance.md
index 0fc5f579..b5802ee5 100644
--- a/en/src/lifetime/advance.md
+++ b/en/src/lifetime/advance.md
@@ -283,4 +283,4 @@ fn use_list(list: &List) {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/advance.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/advance.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/lifetime/basic.md b/en/src/lifetime/basic.md
index 13eaa130..1be46988 100644
--- a/en/src/lifetime/basic.md
+++ b/en/src/lifetime/basic.md
@@ -356,4 +356,4 @@ enum Either<'a> {
 
 fn main() {}
 ```
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/basic.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/basic.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/lifetime/static.md b/en/src/lifetime/static.md
index b1160ffc..12b0e54d 100644
--- a/en/src/lifetime/static.md
+++ b/en/src/lifetime/static.md
@@ -196,4 +196,4 @@ fn print_g(t: &'static String) {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/static.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/lifetime/static.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/method.md b/en/src/method.md
index 83392d7d..c000b860 100644
--- a/en/src/method.md
+++ b/en/src/method.md
@@ -270,4 +270,4 @@ fn main() {
 @todo
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/ownership/borrowing.md b/en/src/ownership/borrowing.md
index 8a5e7e92..d7e63c78 100644
--- a/en/src/ownership/borrowing.md
+++ b/en/src/ownership/borrowing.md
@@ -183,4 +183,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/ownership/borrowing.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/ownership/borrowing.md) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/ownership/ownership.md b/en/src/ownership/ownership.md
index eb8568ce..83e1987e 100644
--- a/en/src/ownership/ownership.md
+++ b/en/src/ownership/ownership.md
@@ -167,4 +167,4 @@ fn main() {
 ```
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/ownership/ownership.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/ownership/ownership.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/pattern-match/match-iflet.md b/en/src/pattern-match/match-iflet.md
index 36a55942..d1ff069d 100644
--- a/en/src/pattern-match/match-iflet.md
+++ b/en/src/pattern-match/match-iflet.md
@@ -207,4 +207,4 @@ fn main() {
 ```
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/pattern-match/match.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/pattern-match/match.md) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/pattern-match/patterns.md b/en/src/pattern-match/patterns.md
index 26adc1ed..2e1dcc61 100644
--- a/en/src/pattern-match/patterns.md
+++ b/en/src/pattern-match/patterns.md
@@ -117,4 +117,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/pattern-match/patterns.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/pattern-match/patterns.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/result-panic/panic.md b/en/src/result-panic/panic.md
index be63274e..105b4ee2 100644
--- a/en/src/result-panic/panic.md
+++ b/en/src/result-panic/panic.md
@@ -110,4 +110,4 @@ panic = 'abort'
 ```
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/panic.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/panic.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/result-panic/result.md b/en/src/result-panic/result.md
index 2f50a374..3fabed05 100644
--- a/en/src/result-panic/result.md
+++ b/en/src/result-panic/result.md
@@ -210,4 +210,4 @@ fn main() -> Result<(), ParseIntError> {
     Ok(())
 }
 ```
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/result.md)(under the solutions path), but only use it when you need it :)
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/result-panic/result.md) (under the solutions path), but only use it when you need it :)
diff --git a/en/src/smart-pointers/box.md b/en/src/smart-pointers/box.md
index d0928f21..b9296f7c 100644
--- a/en/src/smart-pointers/box.md
+++ b/en/src/smart-pointers/box.md
@@ -49,4 +49,4 @@ fn main() {
 ```
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it
diff --git a/en/src/type-conversions/as.md b/en/src/type-conversions/as.md
index 451ac7ed..e3476d6b 100644
--- a/en/src/type-conversions/as.md
+++ b/en/src/type-conversions/as.md
@@ -104,4 +104,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/type-conversions/as.md)(under the solutions path), but only use it when you need it
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/type-conversions/as.md) (under the solutions path), but only use it when you need it
\ No newline at end of file
diff --git a/en/src/type-conversions/from-into.md b/en/src/type-conversions/from-into.md
index 94dd5a7e..f5f5f883 100644
--- a/en/src/type-conversions/from-into.md
+++ b/en/src/type-conversions/from-into.md
@@ -168,4 +168,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/type-conversions/from-into.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/type-conversions/from-into.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/type-conversions/others.md b/en/src/type-conversions/others.md
index 3f06945c..938fa5b9 100644
--- a/en/src/type-conversions/others.md
+++ b/en/src/type-conversions/others.md
@@ -165,4 +165,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/type-conversions/others.md)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice/blob/master/solutions/type-conversions/others.md) (under the solutions path), but only use it when you need it
diff --git a/en/src/variables.md b/en/src/variables.md
index fc22c667..23c35f0a 100644
--- a/en/src/variables.md
+++ b/en/src/variables.md
@@ -155,4 +155,4 @@ fn main() {
 ```
 
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice) (under the solutions path), but only use it when you need it