Move period inside ending quotation marks in about-protected-branches#about-branch-protection-rules

[nguyenalex836]

Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/managing-protected-branches/about-protected-branches#about-branch-protection-rules

This issue is intended for newcomers to the OS Docs repo! 💛

If you are veteran of the OS Docs repo and are looking for issues to work on, take a look at our help wanted section ✨

What part(s) of the article would you like to see updated?

For more information, see "Managing custom repository roles for an organization".

Move period inside ending quotation marks to align with our style guide

Additional information

No response