update README for android setup and more
update README for android setup and more

rtmruczek/react-native-material-kit,xinthink/react-native-material-kit,xinthink/react-native-material-kit,xinthink/react-native-material-kit,20matan/react-native-material-kit,rtmruczek/react-native-material-kit,20matan/react-native-material-kit,xinthink/react-native-material-kit,rtmruczek/react-native-material-kit,20matan/react-native-material-kit