docs(writing_commits): improve documentation for writing commits best…

[bearomorphism]

… practice

Documentation Changes

• [x] Run poetry doc locally to ensure the documentation pages renders correctly
• [x] Check and fix any broken links (internal or external) in the documentation

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 98.68%. Comparing base (120d514) to head (cdf6a3d). :warning: Report is 861 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1712      +/-   ##
==========================================
+ Coverage   97.33%   98.68%   +1.34%     
==========================================
  Files          42       60      +18     
  Lines        2104     2656     +552     
==========================================
+ Hits         2048     2621     +573     
+ Misses         56       35      -21     

Flag	Coverage Δ
unittests	98.68% <ø> (+1.34%)	:arrow_up:

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