Adds usage in readme

README.md

@@ -1,12 +1,9 @@
 # RangeCollection
-[![Build Status](https://travis-ci.org/nkshio/RangeCollection.svg?branch=master)](https://travis-ci.org/nkshio/RangeCollection) [![Coverage Status](https://coveralls.io/repos/nkshio/RangeCollection/badge.svg?branch=master)](https://coveralls.io/r/nkshio/RangeCollection?branch=master) [![Issues](https://img.shields.io/github/issues/nkshio/RangeCollection.svg)](https://github.com/nkshio/RangeCollection/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc) [![Downloads](https://img.shields.io/npm/dt/@nkshio/rangecollection.svg)](https://www.npmjs.com/package/@nkshio/rangecollection) [![dependencies Status](https://david-dm.org/nkshio/RangeCollection/status.svg)](https://david-dm.org/nkshio/RangeCollection) [![devDependencies Status](https://david-dm.org/nkshio/RangeCollection/dev-status.svg)](https://david-dm.org/nkshio/RangeCollection?type=dev) [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
+[![Build Status](https://travis-ci.org/nkshio/RangeCollection.svg?branch=master)](https://travis-ci.org/nkshio/RangeCollection) [![Coverage Status](https://coveralls.io/repos/nkshio/RangeCollection/badge.svg?branch=master)](https://coveralls.io/r/nkshio/RangeCollection?branch=master) [![Issues](https://img.shields.io/github/issues/nkshio/RangeCollection.svg)](https://github.com/nkshio/RangeCollection/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc) [![dependencies Status](https://david-dm.org/nkshio/RangeCollection/status.svg)](https://david-dm.org/nkshio/RangeCollection) [![devDependencies Status](https://david-dm.org/nkshio/RangeCollection/dev-status.svg)](https://david-dm.org/nkshio/RangeCollection?type=dev) [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT) [![Downloads](https://img.shields.io/npm/dt/@nkshio/rangecollection.svg)](https://www.npmjs.com/package/@nkshio/rangecollection)
 
-This Implements a `RangeCollection` class.
-
-`Range` is a pair of integers for example: [1, 5). This range includes integers: 1, 2, 3, and 4.
-
-A `RangeCollection` is an aggregate of these ranges.
+A `RangeCollection` class manages a collection of numeric ranges. 
 
+Given, a `Range` is a pair of integers for example: [1, 5). This range includes integers: 1, 2, 3, and 4. 
 
 ## Installation
 
@@ -21,5 +18,25 @@ Use the package manager [npm](https://www.npmjs.com/) to install `RangeCollectio
 - `npm run cover` - Get coverage report for your code.
 - `npm run build` - Babel will transpile ES6 => ES5 and minify the code.
 
+## Usage
+```javascript
+const RangeCollection = require('./RangeCollection');
+
+const range = new RangeCollection();
+
+range.add([10, 100])
+range.print();
+// '[10, 100)'
+
+range.add([200, 300])
+range.print();
+// '[10, 100) [200, 300)'
+
+range.remove([40, 50])
+range.print();
+// '[10, 40) [50, 100) [200, 300)'
+```
+
+
 # License
 MIT © Ankush Mehta