update readme

Author: erezrokah

README.md

@@ -34,20 +34,26 @@
       compile project(':react-native-firebase-ui')
   	```
 
-#### Windows
-[Read it! :D](https://github.com/ReactWindows/react-native)
-
-1. In Visual Studio add the `RNFirebaseUi.sln` in `node_modules/react-native-firebase-ui/windows/RNFirebaseUi.sln` folder to their solution, reference from their app.
-2. Open up your `MainPage.cs` app
-  - Add `using Com.Reactlibrary.RNFirebaseUi;` to the usings at the top of the file
-  - Add `new RNFirebaseUiPackage()` to the `List<IReactPackage>` returned by the `Packages` method
-
 
 ## Usage
 ```javascript
-import RNFirebaseUi from 'react-native-firebase-ui';
-
-// TODO: What to do with the module?
-RNFirebaseUi;
+import Firebaseimage from 'react-native-firebaseui'
+
+export class MyFirebaseImage extends Component<void, void, void> {
+  constructor(props){
+    super(props)
+  }
+
+  render() {
+    let imageProps = this.props
+
+    return (
+      <Firebaseimage
+        {...imageProps}
+        path='firebase/storage/path'
+        resizeMode='cover' //'cover', 'contain', 'stretch'
+      />
+    )
+  }
+}
 ```
-