Updates to google maps docs.
Updates to google maps docs.

I would do more, but I'll see what kind of feedback I get first from these changes.
xueron/ionic-native,xueron/ionic-native,xueron/ionic-native,ramonornela/ionic-native,driftyco/ionic-native,ramonornela/ionic-native,klirix/ionic-native,ramonornela/ionic-native,klirix/ionic-native,ramonornela/ionic-native,xueron/ionic-native,driftyco/ionic-native,klirix/ionic-native,driftyco/ionic-native