added 3.9 and 3.10 versions

Author: evereux

setup.py

@@ -36,6 +36,8 @@
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         "License :: OSI Approved :: MIT License",
         "Operating System :: Microsoft :: Windows",
     ],