anchor.diff:  
   Use the `instances` attribute to specify the number of app instances you want to start upon push:
   
  -~~~
  -instances: 2
  -~~~
  +<pre>
  +---
  +  ...
  +  instances: 2
  +</pre>
   
   We recommend that you run at least two instances of any apps for which fault tolerance matters.
   
  
positive.code: 
  You can use the `no-route` attribute with a value of `true` to prevent a route from being created for your application.
  
  ~~~
  no-route: true
  ~~~
  
  The command line option that corresponds to this attribute is ``--no-route``.
  
  
negative.code: 
  If your application requires a custom buildpack, you can use the `buildpack` attribute to specify its URL or name:
  
  <pre>
  ---
    ...
    buildpack: buildpack_URL
  </pre>
  
  <p class="note"><strong>Note</strong>: The <code>cf buildpacks</code> command lists the buildpacks that you can refer to by name in a manifest or a command line option.</p>
  
  