Support for github-style code blocks
Support for github-style code blocks

bsansouci/showdown,xinshitn/showdown,xinshitn/showdown,juanonsoftware/showdown,mickelfeng/showdown,mickelfeng/showdown,rollokb/showdown,rollokb/showdown,lhagan/showdown,nilbus/showdown,twitwi/showdown,showdownjs/showdown,axter/showdown,showdownjs/showdown,coolroad/showdown,digideskio/showdown,NichenLg/showdown,digideskio/showdown,OMGgogong/showdown,yaniswang/showdown,twitwi/showdown,pazof/showdown,bsnizek/showdown,NichenLg/showdown,sahat/showdown,phw/showdown,webutilz/showdown,coolroad/showdown,rollokb/showdown,stevemao/showdown,sahat/showdown,ErisDS/showdown,bsansouci/showdown,stevemao/showdown,yaniswang/showdown,pazof/showdown,juanonsoftware/showdown,OMGgogong/showdown,axter/showdown,jaguerra/showdown,phw/showdown,webutilz/showdown,alazyer/showdown,ErisDS/showdown,bsnizek/showdown,alazyer/showdown,nilbus/showdown,lhagan/showdown,snegovick/showdown,jaguerra/showdown,snegovick/showdown,ErisDS/showdown,jaguerra/showdown