It is very simple. Log on to the wiki (with the same username and password of this forum), and edit you page. At the end you can add [[Category:Active Developers]] and save.
That's all... I already did it, but came on, edit your own page, add some description about you before the "contact information".
The trick with a Wiki is being bold, don't care if you submit an incomplete text, and remembering that everything can be rolled back
