docs: Use backticks when referencing custom command annotations, fixes #5820

[GuySartorelli]

The Issue

Most annotations are references using quotes, except the newest one where I was told to use backticks.
They should all use backticks - it looks silly with one being rendered differently.

How This PR Solves The Issue

Use backticks when referencing annotations for custom commands in the docs.
Remove annotations from the spelling words list, since anything in backticks is ignored for spelling checks.

Manual Testing Instructions

Take a look at custom commands page in the docs.

Automated Testing Overview

N/A

Related Issue Link(s)

• Flag annotations on the custom commands doc page should use backticks #5820

Release/Deployment Notes

N/A

[GuySartorelli]

I'm surprised the buildkite CI is running on this - is there a way to tell buildkite to ignore PRs with a docs: prefix?

[GuySartorelli]

Looks like we could avoid running buildkite on docs PRs using the "Filter builds using a conditional" setting. I'd be happy to set that up if you like, looks like I have enough permissions to set that.

[rfay]

Thanks for this! Improvement in how the buildkite run works would be welcome. You'll see they already shortcut the tests (but have to wait to run to do it).

[rfay]

Thanks for this!