Surfacing mailing lists on the new site

(sent previously with wrong email address; oops)

I was chatting with someone on IRC about mailing lists, and it wasn't really obvious to them how to find out what
mailinglists there are. 

Community -> Quick Links -> Mailing Lists gets to /list/ which does provide a list of mailing lists, but it's as links
tothe archives and it's "below the fold". 

The more obvious link from the front page - "maiing lists" in the mailing lists tile - goes to lists.postgresql.org,
whichisn't the best entry point, *especially* if you're not already logged in to a community account. 

Making the first link in the mailing lists tile go to /list/ would be an easy improvement, I think. A page that has the
listnames and descriptions, along with "archive" and "subscribe" buttons would be better still (that page may exist,
butif it does I can't find it). 

Cheers,
 Steve