Add code of conduct
Add code of conduct

Taken from http://contributor-covenant.org/
orientation/orientation,hashrocket/orientation,codeschool/orientation,orientation/orientation,IZEA/orientation,twinn/orientation,hashrocket/orientation,IZEA/orientation,orientation/orientation,splicers/orientation,cmckni3/orientation,robomc/orientation,splicers/orientation,robomc/orientation,orientation/orientation,codeschool/orientation,cmckni3/orientation,splicers/orientation,cmckni3/orientation,codeschool/orientation,twinn/orientation