[Ur] new list of companies / freelancers supporting urweb in the future

[Marc Weber]

Excerpts from Adam Chlipala's message of Thu Nov 18 20:31:05 +0100 2010:
> Right now, this is hard, since I have the wiki set up to require 
> explicit granting of write access.  Anyone who wants this access just 
> needs to e-mail me with a wiki account name.

I added some minimal documentation:
http://www.impredicative.com/wiki/index.php/Contributing_to_this_wiki

So interested people will find it.

Marc Weber