Update README.md

Author: pshihn

README.md

@@ -1,6 +1,6 @@
 # Rough.js
 
-<b>Rough.js</b> is a light weight (9kB) graphics library that lets you draw in a _sketchy_, _hand-drawn-like_, style.
+<b>Rough.js</b> is a light weight (~9kB gzipped) graphics library that lets you draw in a _sketchy_, _hand-drawn-like_, style.
 The library defines primitives to draw lines, curves, arcs, polygons, circles, and ellipses. It also supports drawing [SVG paths](https://developer.mozilla.org/en-US/docs/Web/SVG/Tutorial/Paths).
 
 Rough.js works with both [Canvas](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API) and [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG).
@@ -68,6 +68,10 @@ rc.rectangle(120, 105, 80, 80, {
 });
 ```
 
+Fill styles can be: **hachure**(default), **solid**, **zigzag**, **cross-hatch**, or **dots**
+
+![Rough.js fill examples](https://roughjs.com/images/main/m13.png)
+
 ### Sketching style
 
 ![Rough.js rectangle](https://roughjs.com/images/main/m4.png)