README.md

Most of the themes were converted from n0tch2k's .Xdefaults. The pnevma theme was reconstructed from this screenshot.

##Screenshot ###arthur
###n0tch2k
###pnevma
###quay
###robina
###square
###thayer
###wryan
###zenburn
###twenty

Thanks to n0tch2k, pkmurugan and rent0n86.