sphinx recommends myst-parser for markdown conversion:
https://www.sphinx-doc.org/en/master/usage/markdown.html
m2r2 is not supported for Python versions >= 3.12 so
we can't build Documentation for example on latest Arch Linux
by the way myst-parser detected a bad link to SECURITY.md that is now fixed
Documentation/legacy_README.md:675: WARNING: duplicate label introduction/resources:installation, other instance in Documentation/introduction/resources.rst
testing badges
Converted legacy readme from .md to .rst
Revert "Converted legacy readme from .md to .rst"
This reverts commit e33fef7a5aaa5dd377f87b90a667a2704b9fb834.