docs: update existing markdown documentation and add architecture overview

[HBobertz]

Updating the markdown documentation to better describe the architecture of the project and how to use it

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.9%. Comparing base (6d8f048) to head (d4cbf4a).
Report is 9 commits behind head on main.

Additional details and impacted files

Components	Coverage Δ
Parser	87.2% <ø> (ø)
Intermediate Representation	93.9% <ø> (ø)
Synthesizers	95.8% <ø> (ø)
Other	25.6% <ø> (ø)

@@          Coverage Diff          @@
##            main    #830   +/-   ##
=====================================
  Coverage   90.9%   90.9%           
=====================================
  Files         25      25           
  Lines       5089    5089           
  Branches    5089    5089           
=====================================
  Hits        4625    4625           
  Misses       464     464           

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