Add video tutorial description

README.md

@@ -2,4 +2,45 @@
 
 A simple gulp script to get you started with a new ES6 project.
 
-If you want more information check out the [Let's Learn ES6](https://youtu.be/xFbi2lhHm04?list=PL57atfCFqj2h5fpdZD-doGEIs0NZxeJTX) video on it. 
+If you want more information check out the [Let's Learn ES6](https://youtu.be/xFbi2lhHm04?list=PL57atfCFqj2h5fpdZD-doGEIs0NZxeJTX) video on it. 
+
+
+###### Gulp [[1]](http://gulpjs.com/) [[2]](https://www.npmjs.com/package/gulp)
+* Gulp is a toolkit for automating painful or time-consuming tasks in your development workflow, so you can stop messing around and build something
+
+###### Babel [[1]](https://babeljs.io/) [[2]](https://www.npmjs.com/package/babel)
+* Babel is a transpiler that has been created to make it realy easy to transfer our code from ES6 to ES5.
+
+#### Install Gulp
+```
+npm install -g gulp
+```
+#### Create package.json
+```
+npm init
+```
+This will initialize the NPM package.json and It will ask a bunch of questions.
+For more detail follow [this](https://docs.npmjs.com/getting-started/using-a-package.json).
+
+#### Add dependencies
+
+```
+npm install --save-dev gulp gulp-babel babel-preset-es2015
+```
+This will grab all those packages and add into dependency in package.json like this.
+```javascrip
+ "devDependencies": {
+    "babel-preset-es2015": "^6.18.0",
+    "gulp": "^3.9.1",
+    "gulp-babel": "^6.1.2"
+  }
+```
+
+#### Gulp Task
+* Create [gulpfile.js](https://github.com/Kishanjvaghela/gulp-babel/blob/master/gulpfile.js)
+* To run Gulp Task, type this in terminal.
+	```
+    gulp
+    ```
+    Anytime save or change of file happens to [app.js](https://github.com/Kishanjvaghela/gulp-babel/blob/master/src/app.js), this task run and output compiled transpile code into build folder.
+