add phoenix.gen.json documentation
add phoenix.gen.json documentation

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