fix: typos in documentation files

[leopardracer]

This pull request contains changes to improve clarity, correctness and structure.

Description correction:
Repeated occurrences of the word should have been removed x13.

Please review the changes and let me know if any additional changes are needed.

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.62%. Comparing base (97dadf8) to head (5f60766).
Report is 1 commits behind head on master.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #896   +/-   ##
=======================================
  Coverage   96.62%   96.62%           
=======================================
  Files          19       19           
  Lines        1066     1066           
=======================================
  Hits         1030     1030           
  Misses         36       36           

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[cgewecke]

Thanks! Looks good.