Tooling to update "meta" resources across repositories

[annevk]

Having done a few rounds, I'm starting to think it would be good if we had tooling to update README.md, .gitignore, Makefile, etc. resources across repositories in a simplified manner. That would also keep them more consistent.

[foolip]

https://github.com/w3c/validate-repos serves a similar purpose for W3C repositories, although it's currently only detecting discrepancies and doesn't provide tooling for fixing them. That possibility was raised in w3c/validate-repos#74 however.

[annevk]

https://github.com/whatwg/spec-factory allows for this now. whatwg/spec-factory#1 lists some breakage, but it's already good enough to use I think.

I'm wondering if there are other files folks want to see tackled before I open the first wave of PRs to align things a bit. I might play a bit with README.md if I get the chance, but that's probably the trickiest as we don't have agreement on formatting. (It could still help identifying differences in other sections though.)

[annevk]

https://github.com/whatwg/spec-factory/issues has a number of follow-up issues if anyone is interested in helping out. Having updated a number of specifications with it already I think we can consider this issue to be closed.