Thread: Please link the new [[Mailing Lists]] from the wiki main page

The mailing lists are verty important to postgres but unmentioned on the wiki mainpage.

I've broken out the "Mailing Lists" portion of "Oh, so you want to be a developer"
into an https://wiki.postgresql.org/wiki/Mailing_Lists, and I think it makes
sense to link that page from the main page of the wiki. Which requires admin
privileges.

It might also be a good idea to explicitly document ML etiquette and norms
there in time. as right now its only links a few other projects' FAQ's on a
couple of specific issues.

Thanks,
Amir