title: Grape-Swagger: Route Parameter issues
body: <p>I am using grape-swagger to show documentation on my Ruby API i'm building using Grape.</p>
  
  <p>I am adding descriptions to all of my parameters on my endpoints but I can't seem to find anything about how to add descriptions to route parameters.</p>
  
  <p>I have tried the following:</p>
  
  <p><code>route_param :monitor_name, type: String, desc: 'The name of the monitor that is being retrieved.' do</code></p>
  
  <p>and</p>
  
  <p><code>route_param :monitor_name, type: String, description: 'The name of the monitor that is being retrieved.' do</code></p>
  
  <p>but neither of those will display the actual description on the swagger UI. </p>
  
  <p>Any ideas? 
  Thanks for the help!</p>
  
  <p>p.s. (the only thing I found in the <a href="https://github.com/ruby-grape/grape" rel="nofollow noreferrer">grape</a> documentation is shown in the attach image)</p>
  
  <p><a href="https://i.stack.imgur.com/AzVz2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AzVz2.png" alt="enter image description here"></a></p>