anchor.diff:      
       All of our component names end in "Component".  All of our component file names end in ".component".
       
  -    We spell our file names in lower dash case (AKA "kebab-case") so we don't worry about
  +    We spell our file names in lower **[dash case](../guide/glossary.html#!#dash-case)** 
  +    (AKA **[kebab-case](../guide/glossary.html#!#kebab-case)**) so we don't worry about
       case sensitivity on the server or in source control.
   
       <!-- TODO
  
positive.code: :marked
    The `AppComponent`’s template should now look like this
  
  +makeExample('toh-3/ts/app/app.component.ts', 'hero-detail-template', 'app.component.ts (Template)')(format='.')
  :marked
    Thanks to the binding, the `HeroDetailComponent` should receive the hero from the `AppComponent` and display that hero's detail beneath the list.
    The detail should update every time the user picks a new hero.
  
negative.code:   ### Keep the app transpiling and running
    We want to start the TypeScript compiler, have it watch for changes, and start our server. We'll do this by typing
  
  code-example(language="bash").
    npm start
  
  :marked
  