docs: adding cheat sheet on documentation

[RobPasMue]

Description

Adding a cheat sheet to the PyAnsys Geometry documentation

Issue linked

Closes #1429

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.83%. Comparing base (93ab6ca) to head (d677a7c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1433   +/-   ##
=======================================
  Coverage   91.83%   91.83%           
=======================================
  Files          86       86           
  Lines        6922     6922           
=======================================
  Hits         6357     6357           
  Misses        565      565           

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[RobPasMue]

Okay - things are working smoothly now. Time to get started with the content of the cheat sheet. Thank you @jorgepiloto and @Revathyvenugopal162 for your support!