Capitalizing RFC 2119 words like SHOULD

[asmeurer]

@tomwhite suggested at dask/dask#8750 (comment) that we should capitalize RFC 2119 words like "SHOULD" in the spec to make it clearer that we are following the RFC.

Another option might be to bold the words instead of capitalizing them.

[kgryte]

I think the option of using bold text should suffice. While all-caps is a common convention, it does add a fair amount of visual noise. I think encoding RFC terms using bold text is something we can address in the current draft specification and then continue to enforce moving forward. For prior revisions, we can leave as is.

[rgommers]

That seems like a reasonable option. I'd prefer to avoid capitalized words yell at me:)

[asmeurer]

An idea to automatically bold those words (I haven't tested it). https://chat.openai.com/share/7467ec88-0d8f-4352-9a5b-5b43fe6b8f02