[arch-haskell] Thanks and some package requests

[Skottish]

First off, thank you very much Magnus for maintaining this repo; It's a
great help. As well, thank you to everyone that has contributed to it.

I have a few package requests that are confirmed working with the repo:

html-conduit which depends on tagstream-conduit
text-format which depends on double-conversion
regex-tdfa-text which will be useful until regex-tdfa supports
Data.Text{,.Lazy}

I'm not sure who's in charge of the arch-haskell mailing list page, but
everything defaults to http when https is available. It may be helpful
to switch that over.

Thanks