wins command removed

My setup used to consist of a Windoze guest within a GNU/Linux host, but
I've since been strongly encouraged to do the reverse.
gnus command added

Gnus is now my mail reader (previously mutt)
README.md added to root

This repository should now be at a point where history has been rewritten to
remove anything that my employer may have a problem with, or that I would be
uncomfortable including (e.g. personal information for contacts).
Software license (GNU GPLv3+) added to scripts
More informative README.md