Remove unnecessary quotes

[aaimio]

Why:

Unnecessary quotes in documentation.

What's being changed:

Removing a bunch of quotes from the file below:

• content/github/committing-changes-to-your-project/creating-a-commit-with-multiple-authors.md

Check off the following:

• All of the tests are passing.
• I have reviewed my changes in staging.
• For content changes, I have reviewed the localization checklist
• For content changes, I have reviewed the Content style guide for GitHub Docs.

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

[janiceilene]

Thanks so much for opening a PR @aaron-binary 🎉 The " at the end of line 51 is the end " to the ones opened in the middle of line 47, at the beginning of the commit message. So, both sets of quotes should stay in this example 💛