title: WebApi controller summary is not showing on Swagger documentation
body: <p>When I enable this documentation feature through Swagger I'm able to see all kind of information about my documentation but there is no details about my Controller name detail/description.</p>
  
  <p>How to show controller documentation content like below example?</p>
  
  <pre><code>/// &lt;summary&gt; 
  
  /// Represents the alert api controller class.
  
  /// &lt;summary&gt;
  
  public class XYZController : ApiController
  {
  
  }
  </code></pre>
  
  <p>On enabling swagger I'm not able to see this content any where <code>Represents the XYZ api controller class. here</code></p>
  
  <p>However I able to see my all method description.</p>