Clean up ROS + Gazebo Compatibility

[kscottz]

Summary

Did an English / clarity pass on ROS + GZ compatibility. Created table to summarize.

Checklist

• [ ] Signed all commits for DCO
• [ ] Added tests
• [X] 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.

[kscottz]

@j-rivero @mabelzhang take another look.

[kscottz]

Can I squash and merge?

[kscottz]

@j-rivero @azeey I committed your suggestions. After looking at the original docs I decided the formatting of some of the instructions looked a little off. I changed this section to use bullet lists instead of a series of paragraphs.

Can I go ahead and merge?

[j-rivero]

After looking at the original docs I decided the formatting of some of the instructions looked a little off. I changed this section to use bullet lists instead of a series of paragraphs.

Looks better to me.

Can I go ahead and merge?

+1 by my side.