reason-react-native: add readme for npm

Author: MoOx

reason-react-native/README.md

@@ -0,0 +1,17 @@
+# Reason bindings for React Native
+
+[BuckleScript](https://bucklescript.github.io) bindings for
+[React Native](https://github.com/facebook/react-native) allows to use
+[ReasonML](https://reasonml.github.io) with
+[ReasonReact](https://reasonml.github.io/reason-react/) to make your iOS,
+Android and [Web](https://github.com/necolas/react-native-web) apps.
+
+## Getting Started
+
+Check our
+[getting started](https://reasonml-community.github.io/reason-react-native/en/docs/)
+guide for details.
+
+## Documentation
+
+See https://reasonml-community.github.io/reason-react-native.