docs(toast): add platforms
docs(toast): add platforms

ramonornela/ionic-native,ramonornela/ionic-native,driftyco/ionic-native,driftyco/ionic-native,driftyco/ionic-native,xueron/ionic-native,klirix/ionic-native,xueron/ionic-native,xueron/ionic-native,klirix/ionic-native,xueron/ionic-native,ramonornela/ionic-native,ramonornela/ionic-native,klirix/ionic-native