Improve acronyms rule to match defined acronyms

[politician]

The Microsoft guide says that acronyms shouldn't be used unless they are spelled out. However, the current Vale rule does not allow for this.

Actual behavior:

Expected behavior:

Because personal access token is spelled out just before the use of the acronym, it should not fail.

[jdkato]

The current implementation expects the definition's case to match, for example,

You must use a Personal Access Token (PAT).

would yield no alert.

[politician]

You are right, I had actually tried it but it didn't work because my markdown formatter put it on the next line. I guess that's too much of an edge case to bother.

[politician]

I just made sure that the parser could pick it up, it does and it even recognizes my next usage of PAT. Great!