refactor(README): update screencasts
refactor(README): update screencasts

archriss/react-native-snap-carousel,houseofstylist/react-native-snap-carousel,archriss/react-native-snap-carousel,archriss/react-native-snap-carousel,archriss/react-native-snap-carousel,houseofstylist/react-native-snap-carousel,houseofstylist/react-native-snap-carousel