added pre block around mix tasks so they are readable
added pre block around mix tasks so they are readable

rafbgarcia/phoenix,nshafer/phoenix,optikfluffel/phoenix,larrylv/phoenix_guides,Kosmas/phoenix,korobkov/phoenix,mschae/phoenix,ugisozols/phoenix_guides,0x00evil/phoenix,jeffkreeftmeijer/phoenix_guides,michalmuskala/phoenix,rafbgarcia/phoenix,michalmuskala/phoenix,Joe-noh/phoenix,tuvistavie/phoenix_guides,eksperimental/phoenix,bsmr-erlang/phoenix,Gazler/phoenix,phoenixframework/phoenix,nshafer/phoenix,phoenixframework/phoenix,stevedomin/phoenix_guides,bsmr-erlang/phoenix,tianyi33/phoenix_guides,mitchellhenke/phoenix,keathley/phoenix,jwarwick/phoenix,thetamind/phoenix_guides,bratsche/phoenix_guides,iguberman/phoenix_guides,mobileoverlord/phoenix,stevedomin/phoenix,stevedomin/phoenix,korobkov/phoenix,dmarkow/phoenix,0x00evil/phoenix,trarbr/phoenix,0x00evil/phoenix,dmarkow/phoenix,wsmoak/phoenix_guides,CultivateHQ/phoenix_guides,pap/phoenix-guides,phoenixframework-Brazil/phoenix_guides,mitchellhenke/phoenix,pap/phoenix,mydearxym/phoenix_guides,leikind/phoenix_guides,tokafish/phoenix_guides,optikfluffel/phoenix,rafbgarcia/phoenix,phoenixframework/phoenix,evax/phoenix,eksperimental/phoenix,optikfluffel/phoenix,Joe-noh/phoenix,clessg/phoenix_guides,mschae/phoenix,gjaldon/phoenix,fblecha/phoenix_guides,nshafer/phoenix,philss/phoenix_guides,1ternal/phoenix_guides,mobileoverlord/phoenix,3quarterstack/phoenix_guides,oldfartdeveloper/phoenix_guides,evax/phoenix,gjaldon/phoenix,jwarwick/phoenix,Gazler/phoenix,sakishum/phoenix_guides,greyhwndz/phoenix_guides,keathley/phoenix,Kosmas/phoenix,pap/phoenix,trarbr/phoenix