Update readme

README.md

@@ -2,6 +2,19 @@
 
 This is Bip Messaging App Clone
 
-![ScreenShot](https://i.ibb.co/L5S1gmz/Whats-App-Image-2021-01-12-at-00-07-56.jpg) <!-- .element height="30%" width="auto" -->
+![ScreenShot](https://i.ibb.co/G9kcCrZ/Artboard-1.png) <!-- .element height="30%" width="auto" -->
+
+## Quick start
+
+Get up and running with our BiB App:
+
+1. Once you have the repo cloned and met all the requirements above, start the packager that will transform your JS code on-the-fly:
+
+```
+npm install
+npm start
+```
+
+## Troubleshooting
 
 **More details coming soon**