Minor readme clarification: 'Beacon' -> 'Location'
Minor readme clarification: 'Beacon' -> 'Location'

-Variable name for react-native-location module is Location everywhere except for this one place (where it's Beacon).
timfpark/react-native-location,timfpark/react-native-location,timfpark/react-native-location,timfpark/react-native-location,timfpark/react-native-location