docs: add demo link

Author: Scrum

readme.md

@@ -1,5 +1,5 @@
-# <a href="https://vuejs.org" target="_blank"><img valign="text-bottom" height="49" src="https://vuejs.org/images/logo.png"></a> breadcrumbs
- > Vue breadcrumbs builds on the official [vue-router](https://github.com/vuejs/vue-router) package to provide simple breadcrumbs. 
+# <a href="https://vuejs.org" target="_blank"><img valign="text-bottom" height="49" src="https://vuejs.org/images/logo.png"></a> breadcrumbs 
+ > Vue breadcrumbs builds on the official [vue-router](https://github.com/vuejs/vue-router) package to provide simple breadcrumbs. [Demo](http://inside-demo.github.io/vue-demo/#/feeds)
 
 [![Travis Build Status](https://img.shields.io/travis/GitScrum/vue-2-breadcrumbs/master.svg?style=flat-square&label=unix)](https://travis-ci.org/GitScrum/vue-2-breadcrumbs)[![vue2](https://img.shields.io/badge/vue-2.x-brightgreen.svg?style=flat-square)](https://vuejs.org/)[![node](https://img.shields.io/node/v/post-sequence.svg?maxAge=2592000&style=flat-square)]()[![npm version](https://img.shields.io/npm/v/vue-2-breadcrumbs.svg?style=flat-square)](https://www.npmjs.com/package/vue-2-breadcrumbs)[![Dependency Status](https://david-dm.org/gitscrum/vue-2-breadcrumbs.svg?style=flat-square)](https://david-dm.org/gitscrum/vue-2-breadcrumbs)[![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg?style=flat-square)](https://github.com/sindresorhus/xo)[![Coveralls status](https://img.shields.io/coveralls/GitScrum/vue-2-breadcrumbs.svg?style=flat-square)](https://coveralls.io/r/GitScrum/vue-2-breadcrumbs)
 
@@ -14,7 +14,7 @@ $ npm install vue-2-breadcrumbs
 > **Note:** This project is compatible with node v4+
 
 
-## Usage  
+## Usage
 
 ### Bundler (Webpack, Rollup)
 ```js