Stray documentation from v2.x

[g-galante]

Remove:

• Documentation/TAP_Python_Help/Development_Process_Overview.md
• Documentation/TAP_Python_Help/Virtual_Environments.md

that are no longer referenced in: https://github.com/opentap/OpenTap.Python/blob/5355d7b01959f2c1235b90c8550c91be5e754c0a/Documentation/.vuepress/config.js#L15-L38

The only remaining reference to them:

~/git/OpenTap.Python$ git grep -E 'Development_Process_Overview.md|Virtual_Environments.md'
Documentation/TAP_Python_Help/Index.md:- [Python Development Process Overview](Development_Process_Overview.md)

is in Documentation/TAP_Python_Help/Index.md, which may be updated and renamed to Readme.md, so that it can by used by GitHub to provide an overview of the Documentation/TAP_Python_Help/ folder content, and linked to by: https://github.com/opentap/OpenTap.Python/blob/5355d7b01959f2c1235b90c8550c91be5e754c0a/Documentation/Readme.md?plain=1#L23

[rmadsen-ks]

The virtual environments documentation was fixed in 3.2.