add: better RN docs

README.md

@@ -208,10 +208,26 @@ some of the performance issues are related to the javascript engine, which can b
 enabled versions of v8 or jsc
 
 for window.crypto.getRandomValues you can use either react-native-crypto or react-native-get-random-values
-
+### Installation Instructions
 - `npm install buffer text-encoding react-native-webview-bridge react-native-get-random-values --save`
-- follow instructions to install [WebviewCrypto](https://github.com/saulshanabrook/react-native-webview-crypto)
+- follow instructions to install [WebviewCrypto](https://github.com/webview-crypto/react-native-webview-crypto)
+- for persistent storage you'll need to include RAD + asyncstorage adapter like so
+  you can pass any storage adapter to the Store that implements the AsyncStorage setItem,getItem API
+  ```javascript
+  import {AsyncStorage} from 'react-native'
+  import Gun from 'gun/gun'
+  import SEA from 'gun/sea'
+  import 'gun/lib/radix.js'
+  import 'gun/lib/radisk.js'
+  import 'gun/lib/store.js'
+  import Store from 'gun/lib/ras.js'
 
+  //rad asyncstorage adapter, on Android asyncstorage has 6mb limit by default
+  const asyncStore = Store({AsyncStorage});
+  //start gun
+  Gun({peers:[...],store:asyncStore})
+  ```
+### React Native Example (SEA+RAD) 
 see working [example repo](https://github.com/gooddollar/gun-webcrypto-react-native)
 
 ## Deploy