anchor.diff:  
     1. !{_Install} [!{_npm}](#install-prerequisites "What if you don't have !{_prereq}?") packages.
       
  -    安装[!{_npm}](#install-prerequisites "如果你没有 !{_prereq} ？") 包。
  +    安装 [!{_npm}](#install-prerequisites "如果你没有 !{_prereq} ？") 包。
   
     1. Run `!{_npm} !{_start}` to launch the sample application.
   
  
positive.code: :marked
    All guides and cookbooks have _at least these core files_. Each file has a distinct purpose and evolves independently as the application grows.
  
    所有指南和烹饪书都有*至少这几个核心文件*。每个文件都有独特的用途，并且随着应用的成长各自独立演变。
  
  style td, th {vertical-align: top}
  table(width="100%")
  
negative.code:     Node powers client development and build tools.
      The _npm_ package manager, itself a _node_ application, installs JavaScript libraries.
  
      Node.js 和 npm 对使用 Angular 和其他平台进行现代网络开发是至关重要的。
      Node 驱动客户端开发和构建工具。
      *npm* 包管理器本身是 *node* 应用，用于安装 JavaScript 库。
      
      <a href="https://docs.npmjs.com/getting-started/installing-node" target="_blank" title="Installing Node.js and updating npm">
      Get them now</a> if they're not already installed on your machine.
  