clean up README
clean up README

aprilcs/sandman,webwlsong/sandman,aprilcs/sandman,aprilcs/sandman,webwlsong/sandman,jmcarp/sandman,jeffknupp/sandman,beni55/sandman,beni55/sandman,jeffknupp/sandman,webwlsong/sandman,beni55/sandman,jeffknupp/sandman,jmcarp/sandman,jmcarp/sandman