在code inject里面，放入以下内容：
- 在
header里面，添加
<link href="//cdnjs.cloudflare.com/ajax/libs/prism/1.8.3/themes/prism.min.css" rel="stylesheet" />
- 在
footer里面，添加
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/prism/1.8.3/prism.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/prism/1.8.3/components/prism-css.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/prism/1.8.3/components/prism-html.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/prism/1.8.3/components/prism-js.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/prism/1.8.3/components/prism-powershell.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/prism/1.8.3/components/prism-csharp.min.js"></script>