anchor.diff:  
   :marked
     #### Add navigation to the template
  -  
  +
     #### 添加导航到模版中
   
     Finally, add a dashboard navigation link to the template, just above the *Heroes* link.
   
     最后，在模板上添加一个到仪表盘的导航链接，就放在*Heroes（英雄列表）*链接的上方。
  -  
  +
   - var _vers = _docsFor == 'dart' ? '' : '.1'
   +makeExcerpt('app/app.component' + _vers + '.ts', 'template-v3')
   
  
positive.code: :marked
    Our goal is to move the detail to its own view and navigate to it when the user decides to edit a selected hero.
  
    我们要做的是将详情建移动到它自己的视图，并在用户决定编辑一个英雄时导航到它。
  
    Delete the `<h1>` at the top (we forgot about it during the `AppComponent`-to-`HeroesComponent` conversion).
    
    删除顶部的`<h1>`（在从`AppComponent`转到`HeroesComponent`时忘记改它了）。
    
    Delete the last line of the template with the `<my-hero-detail>` tags.
  
    删除模板最后带有`<my-hero-detail>`标签的那一行。
  
negative.code:   We don't really expect users to paste a route URL into the address bar.
    We add an anchor tag to the template which, when clicked, triggers navigation to the `HeroesComponent`.
  
    我们当然不会真让用户往地址栏中粘贴路由的URL，而应该在模板中的什么地方添加一个锚标签。点击时，就会导航到`HeroesComponent`组件。
  
    The revised template looks like this:
  
  