Fix context generator command in contexts guide (#766)
Fix context generator command in contexts guide (#766)


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