Various edits/corrections to the main README.md.
Various edits/corrections to the main README.md.

NightOwl888/jquery.dirtyforms,ziykon/jquery.dirtyforms,snikch/jquery.dirtyforms,snikch/jquery.dirtyforms,GerHobbelt/jquery.dirtyforms,ziykon/jquery.dirtyforms,NightOwl888/jquery.dirtyforms,ziykon/jquery.dirtyforms,GerHobbelt/jquery.dirtyforms,GerHobbelt/jquery.dirtyforms,NightOwl888/jquery.dirtyforms,snikch/jquery.dirtyforms