Fixed typo in README
Fixed typo in README

Had the propType value descriptions reversed for the `FloatingButtonAndroid` components `hidden` prop.
ayoubdev/react-native-android-kit,ayoubdev/react-native-android-kit,ayoubdev/react-native-android-kit,aybadb/react-native-android-kit,aybadb/react-native-android-kit,aybadb/react-native-android-kit