message: [Docs] Fix build phase for RN 0.46+
diff: @@ -24,6 +24,12 @@ To this::
  export NODE_BINARY=node
  export SENTRY_PROPERTIES=sentry.properties
  +
  + # If you are using RN 0.46+
  + ../node_modules/sentry-cli-binary/bin/sentry-cli react-native xcode \
  + ../node_modules/react-native/scripts/react-native-xcode.sh
  +
  + # For RN < 0.46
  ../node_modules/sentry-cli-binary/bin/sentry-cli react-native xcode \
  ../node_modules/react-native/packager/react-native-xcode.sh
  