documented docker for the auth.json use case (#4922)
documented docker for the auth.json use case (#4922)

add instructions for the docker run command for the multiple config files use case.
cmezh/PokemonGo-Bot,DBa2016/PokemonGo-Bot,DBa2016/PokemonGo-Bot,pengzhangdev/PokemonGo-Bot,cmezh/PokemonGo-Bot,halsafar/PokemonGo-Bot,halsafar/PokemonGo-Bot,goedzo/PokemonGo-Bot,halsafar/PokemonGo-Bot,cmezh/PokemonGo-Bot,goedzo/PokemonGo-Bot,heihachi/PokemonGo-Bot,Gobberwart/PokemonGo-Bot,DBa2016/PokemonGo-Bot,goshan/PokemonGo-Bot,dtee/PokemonGo-Bot,goedzo/PokemonGo-Bot,heihachi/PokemonGo-Bot,heihachi/PokemonGo-Bot,Gobberwart/PokemonGo-Bot,pengzhangdev/PokemonGo-Bot,DBa2016/PokemonGo-Bot,pengzhangdev/PokemonGo-Bot,dtee/PokemonGo-Bot,halsafar/PokemonGo-Bot,Gobberwart/PokemonGo-Bot,heihachi/PokemonGo-Bot,dtee/PokemonGo-Bot,goshan/PokemonGo-Bot,Gobberwart/PokemonGo-Bot,cmezh/PokemonGo-Bot,goedzo/PokemonGo-Bot,pengzhangdev/PokemonGo-Bot,dtee/PokemonGo-Bot