Sentence checker (backport #4592)

[mergify]

And now, a reading from the book of Code Style

Each sentence must start on a new line.

@clalancette is a real stickler for this, so I made a linter. Unfortunately, there are lots of problems, some of which are the linter, and some of which are the content.

Happy to have help. I can't devote a ton more time to this, but I still wanted the code to be out there.

---

This is an automatic backport of pull request #4592 done by Mergify.

[mergify]

Cherry-pick of 784fd45 has failed:

On branch mergify/bp/humble/pr-4592
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit 784fd45.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	new file:   .sphinx_tamer.yaml
	modified:   Makefile
	new file:   plugins/ros_checkers.py
	modified:   requirements.txt
	modified:   source/Concepts/Intermediate/About-Executors.rst
	modified:   source/Contact.rst
	modified:   source/How-To-Guides/Documenting-a-ROS-2-Package.rst
	modified:   source/How-To-Guides/Migrating-from-ROS1/Migrating-Launch-Files.rst
	modified:   source/How-To-Guides/Releasing/Release-Track.rst
	modified:   source/How-To-Guides/Releasing/Releasing-a-Package.rst
	modified:   source/How-To-Guides/Using-Variants.rst
	modified:   source/Installation/Alternatives/RHEL-Install-Binary.rst
	modified:   source/Installation/DDS-Implementations.rst
	modified:   source/Installation/DDS-Implementations/Install-Connext-Security-Plugins.rst
	modified:   source/Installation/DDS-Implementations/Install-Connext-University-Eval.rst
	modified:   source/Installation/DDS-Implementations/Working-with-GurumNetworks-GurumDDS.rst
	modified:   source/Installation/RHEL-Install-RPMs.rst
	modified:   source/Installation/Windows-Install-Binary.rst
	modified:   source/Installation/_RHEL-Set-Locale.rst
	modified:   source/Installation/_Ubuntu-Set-Locale.rst
	modified:   source/The-ROS2-Project/Contributing/Build-Farms.rst
	modified:   source/The-ROS2-Project/Contributing/Code-Style-Language-Versions.rst
	modified:   source/The-ROS2-Project/Contributing/Quality-Guide.rst
	modified:   source/The-ROS2-Project/ROSCon-Content.rst
	modified:   source/Tutorials/Advanced/Security/Introducing-ros2-security.rst
	modified:   source/Tutorials/Advanced/Simulators/Webots/Setting-Up-Simulation-Webots-Basic.rst
	modified:   source/Tutorials/Demos/Real-Time-Programming.rst
	modified:   source/Tutorials/Intermediate/Testing/Cpp.rst
	modified:   source/Tutorials/Intermediate/Testing/Integration.rst
	modified:   source/Tutorials/Intermediate/URDF/Using-URDF-with-Robot-State-Publisher-cpp.rst
	modified:   source/Tutorials/Miscellaneous/Building-Realtime-rt_preempt-kernel-for-ROS-2.rst
	modified:   source/index.rst
	new file:   sphinx-lint-with-ros

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   source/Installation/Alternatives/RHEL-Development-Setup.rst
	both modified:   source/Installation/Alternatives/Windows-Development-Setup.rst
	both modified:   source/Installation/_rosdep_Linux_Mint.rst

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[fujitatomoya]

@DLu please review this one too.

[github-actions]

HTML artifacts: https://github.com/ros2/ros2_documentation/actions/runs/13865464784/artifacts/2755726820.

To view the resulting site:

1. Click on the above link to download the artifacts archive
2. Extract it
3. Open html-artifacts-5089/index.html in your favorite browser

[fujitatomoya]

@christophebedard i addressed your comments, can you check and merge?