Merge pull request #355 from mhallsmoore/setup-fix

Fixed typo in setup.py.

Author: mhallsmoore

setup.py

@@ -19,7 +19,7 @@
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8"
+        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
     ],
     packages=find_packages(exclude=("tests",)),