title: Jbuilder without the .json extension
body: <p>Doing <code>http://localhost:3000/options/audio</code></p>
  
  <p>And I get error: </p>
  
  <pre><code>Missing template options/audio, application/audio with {:locale=&gt;[:en], :formats=&gt;[:html], :variants=&gt;[], :handlers=&gt;[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in: * "/Users/mmahalwy/Desktop/Code/quran.com/QuranAPI/app/views"
  </code></pre>
  
  <p>When I do <code>http://localhost:3000/options/audio.json</code></p>
  
  <p>That renders my Jbuilder file and the desired json. How can I render my jbuilder template with the .json extension? </p>