message: Feature(README): Drop line related beta status
diff: [![deps dev](https://david-dm.org/getsentry/react-native-sentry/dev-status.svg)](https://david-dm.org/getsentry/react-native-sentry?type=dev&view=list)
  [![deps peer](https://david-dm.org/getsentry/react-native-sentry/peer-status.svg)](https://david-dm.org/getsentry/react-native-sentry?type=peer&view=list)
  -**This is a beta release**
  -
  *Requirements:*
  * `react-native >= 0.38` for iOS
  