#180 and #181 and a small UI fix

1. #181 - Add GoingGo Training as a Supporter
1. #180 - Add MetaCasts.Tv as a Supporter
1. Fixed the text overlapping issue I found in /supporters while working on lower screen width.

NB: Haven't removed sourcegraph

[skip ci]

You can see the changes here in the staging server - http://107.170.38.195:4000/