[FSSDK-10121] doc update

Author: junaed-optimizely

README.md

@@ -10,7 +10,7 @@ Optimizely Rollouts is [free feature flags](https://www.optimizely.com/free-feat
 
 Refer to the [React SDK's developer documentation](https://docs.developers.optimizely.com/experimentation/v4.0.0-full-stack/docs/javascript-react-sdk) for detailed instructions on getting started with using the SDK.
 
-For React Native, review the [React Native developer documentation](https://docs.developers.optimizely.com/feature-experimentation/docs/javascript-react-native-sdk) for installation and implementation detail.
+For React Native, review the [React Native developer documentation](https://docs.developers.optimizely.com/feature-experimentation/docs/javascript-react-native-sdk).
 
 
 ### Features
@@ -70,6 +70,10 @@ class App extends React.Component {
 npm install @optimizely/react-sdk
 ```
 
+For **React Native**, installation instruction is bit different. Check out the 
+- [Official Installation guide](https://docs.developers.optimizely.com/feature-experimentation/docs/install-sdk-reactnative)
+- [Expo React Native Sample App](https://github.com/optimizely/expo-react-native-sdk-sample)
+
 ## Use the React SDK
 
 ### Initialization