Add tooltips to Desktop Environment logos
mkdir: s/change/create http://tomercohen.com/2013/03/24/%D7%9C%D7%99%D7%A0%D7%95%D7%A7%D7%A1-%D7%9C%D7%A1%D7%98%D7%95%D7%93%D7%A0%D7%98%D7%99%D7%9D/comment-page-1/#comment-7352