[Design-team] Updated Design team wiki page

Hi, We reviewed the draft wiki page kirkb did for us today in the team meeting and decided to go ahead and push it to the main page. So I just did that. :) The only edit I made was to update to our new meeting time. Take a look here: https://fedoraproject.org/wiki/Design Any issues / suggestions / ideas more than welcome. Thanks kirkb for doing such a great job! ~m