chore: put in updatable rec infra

[marcoscaceres]

Closes #148

Ok, so we are going to show Corrections and Additions like this:

All we need to do is make sure we label the each new commit correctly.

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Preview | Diff

[marcoscaceres]

(@reillyeon, sorry if you got the annoying empty commit thing again... I had to rebase)

[reillyeon]

I assume the publishing infrastructure will slap "Proposed Edited Recommendation" on it?

[marcoscaceres]

Indeed, that’s handled by https://github.com/w3c/geolocation-api/blob/79cc49a0e2374d192f3e7c560c0d5af2d3d3e77c/.github/workflows/auto-publish.yml#L25