231 write sphinx documentation using markdown via myst

[dylanhmorris]

This PR:

• switches all documentation source from .rst to .md
• updates sphinx settings and github actions accordingly
• Removes no longer needed post_process_rst.py
• replaces MathJax with KaTeX for equation rendering
• Fixes Deterministic module documentation missing from the webpage #414
• Removes some legacy files

Closes #231

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.41%. Comparing base (9bc3dae) to head (3a3a566).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #457   +/-   ##
=======================================
  Coverage   94.41%   94.41%           
=======================================
  Files          42       42           
  Lines        1003     1003           
=======================================
  Hits          947      947           
  Misses         56       56           

Flag	Coverage Δ
unittests	94.41% <ø> (ø)

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[dylanhmorris]

As of ac5ac13 this will also close #414

[dylanhmorris]

This should also resolve #413

[damonbayer]

Thanks @dylanhmorris. I think a bit more cleanup could be done before or after merging this. See my comments.

[dylanhmorris]

Thanks @dylanhmorris. I think a but more cleanup could be done before or after mergin this. See my comments.

I think after makes sense for atomicity