chore: add long description to readme

[cadenmyers13]

closes #11

[cadenmyers13]

flake8 is failing. This is addressed in the other PR regarding the CLI

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.67%. Comparing base (261ec9b) to head (c1ad2c2).
⚠️ Report is 33 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #19   +/-   ##
=======================================
  Coverage   75.67%   75.67%           
=======================================
  Files           3        3           
  Lines          37       37           
=======================================
  Hits           28       28           
  Misses          9        9           

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