anchor.diff:    <div class="quick-links">
       <ul>
         <li><a href="#pre">Prerequisite</a></li>
  -      <li><a href="#create">Create and Bind a Service Instance</a></li>
  -        <ul>
  -          <li><a href="#manifest">Bind with an App Manifest</a></li>
  -          <li><a href="#mount-path">Mount Path Limitation</a></li>
  -        </ul>
  -      <li><a href="#app">Access the Volume Service from your App</a></li>
  +      <li><a href="#mount-external-filesystem">Mount an External Filesystem</a></li>
  +      <ul>
  +        <li><a href="#create">Create and Bind a Service Instance</a></li>
  +        <li><a href="#app">Access the Volume Service from your App</a></li>
  +        <li><a href="#manifest">Bind with an App Manifest</a></li>
  +        <li><a href="#mount-path">Mount Path Limitation</a></li>
  +      </ul>
         <li><a href="#nfs">NFS Volume Service</a></li>
           <ul>
             <li><a href="#create-nfs">Create an NFS Volume Service</a></li>
  
positive.code:     </tr>
    </table>
  
  ## <a id='nfs'></a> NFS Volume Service
  
  This section describes how to use the NFS volume service.
  
negative.code: 
  If no volume service that fits your requirements exists, contact <%= vars.admin %>.
  
  ## <a id="mount-external-filesystem"></a> Mount an External Filesystem
  
  The sections below describe how to mount an external filesystem to your app.
  
  ### <a id="create"></a> Create and Bind a Service Instance
  
  To use a volume service deployed by <%= vars.admin %>, you must first create an instance of the specific volume service that you need. Follow the instructions below to create this service instance.
  
  