title: Documentation comment for a Swift class extension
body: <p>I am extending <code>UIColor</code>, and trying to give <a href="https://developer.apple.com/library/content/documentation/Xcode/Reference/xcode_markup_formatting_ref/ComentBlock.html" rel="nofollow noreferrer">a description</a> to the extended class.</p>
  
  <p>My code is </p>
  
  <pre><code>/**
   - To store all colors
   - Naming Convention identifier: In lowerCamelCase with single name description
   - Naming Convention value: single name
  
   - example:  self.view.backgroundColor = UIColor.View.NonCompliant
  
   */
  extension UIColor{
  
          /**
           - To specify all seperators' color
           */
          struct Seperators{
              static let commonSeperator = UIColor(red: 53.0/255.0, green: 126.0/255.0, blue: 167.0/255.0, alpha: 1.0)
          }
  }
  </code></pre>
  
  <p>But Xcode still shows the original description instead of the modified description.</p>
  
  <p>Does anyone know how to do this?</p>