Update heroku.md
Update heroku.md
optikfluffel/phoenix,optikfluffel/phoenix,phoenixframework/phoenix,jwarwick/phoenix,rafbgarcia/phoenix,jwarwick/phoenix,Joe-noh/phoenix,nshafer/phoenix,Joe-noh/phoenix,dmarkow/phoenix,michalmuskala/phoenix,keathley/phoenix,0x00evil/phoenix,phoenixframework/phoenix,dmarkow/phoenix,nshafer/phoenix,eksperimental/phoenix,rafbgarcia/phoenix,Gazler/phoenix,michalmuskala/phoenix,0x00evil/phoenix,Gazler/phoenix,0x00evil/phoenix,phoenixframework/phoenix,nshafer/phoenix,keathley/phoenix,rafbgarcia/phoenix,eksperimental/phoenix,optikfluffel/phoenix