Welcome to Tabletop Gamer's Guild! You will probably want to read the help pages[1] to understand how to edit wikis and such. Or, maybe you just like to stumble through things. We do that a lot. That's how gamers learn, after all!
If there is someone else who should be invited to this wiki, you may do so at this page. I currently allow all users to invite new users and, so long as no one abuses this function, there should be no reason to change this.