anchor.diff:    It's an excellent alternative to the *SystemJS* approach we use throughout the documentation.
     In this guide we get a taste of Webpack and how to use it with Angular 2 applications.
   
  -  这是我们在文档中到处使用的这个*SystemJS*的一个优秀替代品。这篇指南会带我们尝尝Webpack的滋味，并学习如何在Angular 2程序中使用它。
  +  它是我们在文档中到处使用的*SystemJS*的一个优秀替代品。这篇指南会带我们尝尝Webpack的滋味，并学习如何在Angular 2程序中使用它。
   
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     ## Table of contents
  
positive.code:   The `karma-test-shim` tells Karma what files to pre-load and
    primes the Angular test framework with test versions of the providers that every app expects to be pre-loaded.
  
    `karma-test-shim`告诉Karma那些文件需要预加载，首要的是：带有“测试版供应商”的Angular测试框架是每个应用都希望预加载的。
  
  +makeExample('webpack/ts/config/karma-test-shim.js', null, 'config/karma-test-shim.js')(format=".")
  
  
negative.code:   The `HtmlWebpackPlugin` (added in `webpack.common.js`) use the *publicPath* and the *filename* settings to generate
    appropriate &lt;script&gt; and &lt;link&gt; tags into the `index.html`.
  
    `HtmlWebpackPlugin`(在`webpack.common.js`中)插件使用*`publicPath`*和*`filename`*设置，
    来向`index.html`中插入适当的&lt;script&gt;和&lt;link&gt;标签。
  
    Our CSS are buried inside our Javascript bundles by default. The `ExtractTextPlugin` extracts them into
  