Merge pull request #1366 from Axelrod-Python/python3.8

Add python 3.8 to setup.py and github CI config

Author: meatballs

.github/workflows/config.yml

@@ -14,7 +14,7 @@ jobs:
       max-parallel: 4
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: [3.6, 3.7]
+        python-version: [3.6, 3.7, 3.8]
 
     steps:
     - uses: actions/checkout@v1

setup.py

@@ -31,6 +31,7 @@
     classifiers=[
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3 :: Only",
     ],
     python_requires=">=3.6",