Website for viewing proposals

[Matthew Pickering]

Hi,

It would be useful if there was a canonical way to link and view GHC
proposals rather than relying on github's RST viewer.

Can we set up a website, `ghc.haskell.org/proposals`, which is
deployed to automatically when a new accepted proposal is merged?

FWIW, if the proposals process was also on gitlab then doing this
deployment would be easy using our CI infrastructure but I don't know
how to set up something similar on github.

Cheers,

Matt