.Astronomy7: wiki pages up and running

I spent the last few days putting together the .Astronomy7 Wiki pages. Unfortunately my poor editing skills meant that I spammed at least one person with a silly number of google notifications. Apologies @cosmicpudding! But it definitely helped with taking stock of what still needs to be organised and it definitely helped to sort out the flurry of Day Zero thoughts in my head. I'm glad there are five of us organising this conference. So many small/administrative things to do, so little time...