Python 3.9 badge

[JhnW]

Hi.
In your project you have a badge of supported python versions (probably generated from the description in pypy). My project using your library for a long time and the CI (with a lot of test coverage) on python 3.9 and everything works - you can pick up information about supported python with a clear conscience.
I also used python 3.10 on windows in this context, but due to the fact that I do not run automatic tests for this version myself, I do not give any guarantees, but I am telling you.

[sighingnow]

Thanks for your information.

It indeed works for both python 2, and python 3 and isn't sensetive to certain minir python variant version. I will upload the README to make it clear.

[sighingnow]

Addressed by 66c8a47