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[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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

:exclamation: 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

```diff @@ 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!