Add pause run tutorial

[Ryanf55]

📚 Docs

Fixes #2380

Summary

Add a tutorial to start/stop the simulation with either the GUI or CLI. This mirrors the reset simulation tutorial.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.91%. Comparing base (ab18888) to head (7250d24).
Report is 58 commits behind head on gz-sim8.

❗ Current head 7250d24 differs from pull request most recent head 54b25fe

Please upload reports for the commit 54b25fe to get more accurate results.

Additional details and impacted files

@@             Coverage Diff             @@
##           gz-sim8    #2383      +/-   ##
===========================================
+ Coverage    65.75%   65.91%   +0.16%     
===========================================
  Files          327      327              
  Lines        31233    31313      +80     
===========================================
+ Hits         20537    20640     +103     
+ Misses       10696    10673      -23     

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[azeey]

@arjo129 Is there anything left for this PR?

[Ryanf55]

Thanks for the touch ups and merge!