Fix formatting in the README
Fix formatting in the README

Either four spaces _or_ fences, not both
jsis/cfp.jsconf.is,emberjs/cfp-app,kgrz/cfp-app,jmccartie/cfp-app,jmccartie/cfp-app,katorie/cfp-app,ruby-no-kai/cfp-app,rubycentral/cfp-app,jsis/cfp.jsconf.is,rubycentral/cfp-app,ruby-no-kai/cfp-app,katorie/cfp-app,kgrz/cfp-app,emberjs/cfp-app,jsis/cfp.jsconf.is,emberjs/cfp-app,kgrz/cfp-app,rubycentral/cfp-app,ruby-no-kai/cfp-app,katorie/cfp-app,jmccartie/cfp-app