[Slackdocs] Links to the old Slackware Store

[Xavier Belanger / Ellendhel]

Hi,

This is kind of late, but I realized that there is a fair amount
of references to the old Slackware store (store.slackware.com)
on the wiki.

I have removed two references in the French section (there is still
more) and from a quick search there is plenty of results in various
other sections.

What would be the "official" guidelines here? With what do we want
to replace those links with? To my knowledge, the following URLs
would be appropriate:

 - https://www.paypal.com/paypalme/volkerdi to financially support
Pat and Slackware

 - https://www.patreon.com/slackwarelinux/overview, same thing

 - https://www.cafepress.com/volkerdi, to buy some Slackware swag

Sincerely,
-- 
Ellendhel <slackdocs at ellendhel.net>