making-the-grade: adjusting docstring indentation

[imrehg]

Minor stuff, just to have consistency in the looks.

[BethanyG]

Hi @imrehg 👋🏽

Thanks so much for submitting this PR. Normally, I'd accept it but we have someone working on the docsttings as a group (see issue #2974 for discussion), and I think the change is better left to them because they are making other changes as well.
As such, I am going to close this PR.

@Metallifax - FYI for this indentation issue - and let me know if you have any questions or issues, or are no longer working on docstrings. Thanks!

[Metallifax]

@BethanyG I have a branch that shows my current progress for the cleanup effort if your'e interested in having a peek. Pydocstyle sees the same indentation problem on my end, it was just a matter of getting that far down the list. I'm hoping to submit the pull request on it either sometime tonight or tomorrow and we can go over questions I have in the review stage if that works for you. Regards.