move AppDelegate setup instructions to setup
move AppDelegate setup instructions to setup

brysgo/react-native-facebook-login,leonacky/react-native-facebook-login,leonacky/react-native-facebook-login,lwhiteley/react-native-facebook-login,leonacky/react-native-facebook-login,brysgo/react-native-facebook-login,lwhiteley/react-native-facebook-login,brysgo/react-native-facebook-login,lwhiteley/react-native-facebook-login