Properly capitalize "macOS"

[stephenwade]

Why:

The name of Apple's desktop operating system should always be capitalized with a lowercase "m", like this:

macOS

Issue #1155

What's being changed:

Change all occurrences of "MacOS" to "macOS".

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]

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[janiceilene]

Thanks so much for opening an issue and PR @stephenwade! I'll get this triaged for review 🎉

[stephenwade]

@janiceilene Just recreated this to remove any edits to the translations folder. I understand that content in this folder can't be changed with a PR.

[janiceilene]

Thanks so much @stephenwade!

[github-actions]

This PR is stale because it has been open 7 days with no activity and will be automatically closed in 3 days. To keep this PR open, update the PR by adding a comment or pushing a commit.

[stephenwade]

not stale. cc: @janiceilene

[janiceilene]

@stephenwade You're right, it's not stale! Thanks for your patience 💛 Our small team is working our way through reviewing all of the amazing contributions ✨

[shati-patel]

Thank you for the contribution, @stephenwade! You're absolutely right about the capitalization 😄

Apologies for the initial delay, but we'll get this merged shortly!

[github-actions]

Thanks very much for contributing! Your pull request has been merged 🎉 You should see your changes appear on the site in approximately 24 hours.