anchor.diff:    p.
       In the <code>&lt;body&gt;</code>, add an element called <code>&lt;my-app&gt;</code> that will be the root of your
       application.
  +  
  +  p.
  +    The TypeScript setup includes System.js, a third-party open-source library that adds ES6 module loading functionality to browsers. This step isn't needed for the ES5 version. System requires mapping the code file paths to understand what to be load.
   
     pre.prettyprint.lang-html
       code.
  
positive.code: 
    p This basic Angular app contains the structure for any app you'll build.
  
    p.
      You can think of Angular apps as a tree of components.  This root component we've been talking about acts as the top
      level container for the rest of your application.  You've named this one <code>AppComponent</code>, but there's
      nothing special about the name and you can use whatever makes sense to you.
  
    p.
      The root component's job is to give a location in the <code>index.html</code> file where your application will
      render through it's element, in this case <code>&lt;my-app&gt;</code>.  There is also nothing special about this
      element name and you can pick it as you like.
  
    p.
      The root component loads the initial template for the application that will load other components to perform
      whatever functions your application needs - menu bars, views, forms, etc.  We'll walk through examples of all of
      these in the following pages.
  
    p Exciting!  Not excited yet?  Let's move on to <a href="displaying-data.html">Displaying Data</a>.
  
  
  
negative.code:   p.
      You can edit and test out your apps either though serving local files through a web server or through a service like
      Plunker.
      
    .callout.is-helpful
      header Plunker is the fastest setup
      p.
        Plunker is a free online text editor. You can use the <a href="http://plnkr.co/edit/?p=preview">starter template</a> for Angular 2 to get going without any setup.
      
    p.
      For Plunker, just use the <a href="http://plnkr.co/edit/?p=preview">starter template</a> to get going.  If you're serving local files, edit and save them and start a web server that serves files in that directory.  If you have Python installed, you can run a basic HTTP server from the root of your code directory with:
  
    pre.prettyprint.lang-bash
      code python -m SimpleHTTPServer 8000
  