Add screenshot.

Author: maratal

src/images/content/screenshots/getting-started/react-native-push-getting-started-guide.png

@@ -593,6 +593,8 @@ Add three more buttons to the `buttons` view in your `return` statement:
 
 Build and run your app again. Use the new buttons to send push notifications directly to your device ID, client ID, or the subscribed channel.
 
+![Screenshot of the React Native push tutorial application](../../../../images/content/screenshots/getting-started/react-native-push-getting-started-guide.png)
+
 ## Next steps <a id="next-steps"/>
 
 * Understand [token authentication](/docs/auth/token) before going to production.