add codespell to prevent simple typos

[Borda]

What does this PR do?

this simple check will catch the trivial typos

[codecov]

Codecov Report

Merging #754 (27b7d2e) into main (e3bf26b) will not change coverage.
Report is 4 commits behind head on main.
The diff coverage is n/a.

❗ Current head 27b7d2e differs from pull request most recent head 9f682cb. Consider uploading reports for the commit 9f682cb to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #754   +/-   ##
=======================================
  Coverage   91.49%   91.49%           
=======================================
  Files          17       17           
  Lines        1622     1622           
=======================================
  Hits         1484     1484           
  Misses        138      138           

[willingc]

Thanks for this PR.