Fix case to match project docs: Eex -> EEx
Fix case to match project docs: Eex -> EEx

mobileoverlord/phoenix,Gazler/phoenix,Kosmas/phoenix,phoenixframework/phoenix,rafbgarcia/phoenix,mschae/phoenix,dmarkow/phoenix,gjaldon/phoenix,nshafer/phoenix,pap/phoenix,rafbgarcia/phoenix,evax/phoenix,Joe-noh/phoenix,bratsche/phoenix_guides,korobkov/phoenix,nshafer/phoenix,dmarkow/phoenix,optikfluffel/phoenix,bsmr-erlang/phoenix,0x00evil/phoenix,gjaldon/phoenix,mobileoverlord/phoenix,keathley/phoenix,eksperimental/phoenix,eksperimental/phoenix,evax/phoenix,korobkov/phoenix,Gazler/phoenix,phoenixframework/phoenix,bsmr-erlang/phoenix,trarbr/phoenix,mitchellhenke/phoenix,jwarwick/phoenix,mitchellhenke/phoenix,tokafish/phoenix_guides,fblecha/phoenix_guides,optikfluffel/phoenix,0x00evil/phoenix,Kosmas/phoenix,stevedomin/phoenix,optikfluffel/phoenix,rafbgarcia/phoenix,wsmoak/phoenix_guides,jwarwick/phoenix,stevedomin/phoenix,michalmuskala/phoenix,Joe-noh/phoenix,trarbr/phoenix,phoenixframework/phoenix,keathley/phoenix,0x00evil/phoenix,mschae/phoenix,pap/phoenix,nshafer/phoenix,michalmuskala/phoenix