add gem badge to readme
add gem badge to readme
adamdjbrett/adamdjbrett.github.io,broccolini/swiss,broccolini/swiss,adamdjbrett/adamdjbrett.github.io,adamdjbrett/adamdjbrett.github.io,elliottw/elliottw.github.io,winstonlarson/winstonlarson.github.io,winstonlarson/winstonlarson.github.io,elliottw/elliottw.github.io