Added image in the readme

Author: RiyaGupta89

React-App/README.md

@@ -6,7 +6,6 @@ This Project is a Simple ReactJS Project which demonstrates the following
 4. Using Bootstrap along with React
 5. Using Basic Routing in React
 
-
 ## Prerequisites
 
 ### Install Node JS
@@ -35,4 +34,8 @@ In order to run the application Type the following command
 npm start
 ```
 
-The Application Runs on **localhost:3000**
+The Application Runs on **localhost:3000**
+
+## Screenshot
+
+![demo](./demo.png)