README Update

Author: nil1729

README.md

@@ -1,3 +1,40 @@
-### URL Shortener
-* Url Shortening Service Using `NodeJS` and `Mongodb` 
-* The Site is Hosted on `Heroku`. [Click Here](https://url-nil.herokuapp.com/)
+## URL Shortener
+* ##### URL shortner made using NodeJS and MongoDB served over Heroku. [Check here](https://url--nil.herokuapp.com/).
+
+* ##### Github Repository Link [here](https://github.com/nil1729/url-shortner-nodejs).
+
+---
+
+### Website Preview 
+* <img src="./preview/1.png">
+
+---
+
+### Setup Locally
+
+##### Prerequisites
+
+* [MongoDB](https://www.mongodb.com/cloud/atlas).
+* [Node JS](https://nodejs.org/).
+* [React JS](https://reactjs.org/).
+
+##### Instructions
+
+```
+>> git clone https://github.com/nil1729/url-shortner-nodejs.git
+>> cd url-shortner-nodejs
+>> npm install 
+```
+##### In `config` directory
+* Create a `default.json` file.
+* Add your `MongoDB Atlas` credentials in `"mongoURI"` field.
+```
+{
+    "mongoURI": ""
+}   
+```
+* [Here is [the Video](https://www.youtube.com/watch?v=KKyag6t98g8) Tutorial for how to create MongoDB Atlas account and connect to NodeJS application].
+
+---
+
+<p style="text-align: center;">Made With<span style="color: red;"> &#10084; </span>by <a href="https://github.com/nil1729" target="_blank"> Nilanjan Deb </a> </p>