Update README

Author: rnugraha

README.md

@@ -1,6 +1,6 @@
 # react-mutation-plot
 
-> A React based mutation lollipop plot.
+> A light weight adaptation React based mutation lollipop plot from [cBioPortal frontend](https://github.com/cBioPortal/cbioportal-frontend).
 
 [![NPM](https://img.shields.io/npm/v/react-mutation-plot.svg)](https://www.npmjs.com/package/react-mutation-plot) [![JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg)](https://standardjs.com)
 
@@ -12,6 +12,8 @@ npm install --save react-mutation-plot
 
 ## Usage
 
+Check the `/example` folder for a complete usage. 
+
 ```jsx
 import React, { Component } from 'react'