[ubuntu-art] [Breathe] Submissions page formatting change.

[Cory K.]

In an effort to give more focus to some particular areas in Breathe I've
reformatted the submissions page a bit.

I've sectioned it up a bit in order to show what still needs to be done
within the given area. Also, I hope this will let someone tackle an
entire section so as to keep things consistent there.

https://wiki.ubuntu.com/Artwork/BreatheIconSet/Submissions


-Cory K.