Update README.md

Author: xcatliu

README.md

@@ -2,7 +2,7 @@
 
 [![Build Status](https://img.shields.io/travis/mobi-css/mobi-plugin-prism.svg)](https://travis-ci.org/mobi-css/mobi-plugin-prism) [![npm package](https://img.shields.io/npm/v/mobi-plugin-prism.svg)](https://www.npmjs.org/package/mobi-plugin-prism) [![npm downloads](http://img.shields.io/npm/dm/mobi-plugin-prism.svg)](https://www.npmjs.org/package/mobi-plugin-prism) 
 
-The prism plugin for [Mobi.css](http://getmobicss.com)
+The default theme for highlighter [Prism](http://prismjs.com)
 
 ## Introduction
 

docs/index.html

@@ -16,7 +16,7 @@
     <div class="flex-center">
       <div class="container">
         <h1 id="prism">Prism</h1>
-<p>The default theme for highlighter Prism</p>
+<p>The default theme for highlighter <a href="http://prismjs.com">Prism</a></p>
 <h2 id="html">html</h2>
 <pre class="language-html"><code class="language-html"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>html</span><span class="token punctuation">></span></span>
   <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>head</span><span class="token punctuation">></span></span>

site/index.md

@@ -1,6 +1,6 @@
 # Prism
 
-The default theme for highlighter Prism
+The default theme for highlighter [Prism](http://prismjs.com)
 
 ## html