Add an overview and diagram to the 'Moving Parts' section (#2738)
Add an overview and diagram to the 'Moving Parts' section (#2738)


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