Missed closing example & adding render.

Author: joedolson

docs/contribute/github/content-kitchen-sink.md

@@ -106,6 +106,11 @@ Add the video itself in the page with:
 You can add captions and navigable transcripts by placing `.vtt` files in the `/assets/captions/` directory and referencing them in the HTML:
 
 ```markdown
+<video data-able-player data-youtube-nocookie="true" data-youtube-id="6brKmJfDtNQ" data-heading-level="0">
+	<track kind="captions" src="{{site.baseurl}}/assets/captions/captions-6brKmJfDtNQ.vtt"/>
+</video>
+```
+
 <video data-able-player data-youtube-nocookie="true" data-youtube-id="6brKmJfDtNQ" data-heading-level="0">
 	<track kind="captions" src="{{site.baseurl}}/assets/captions/captions-6brKmJfDtNQ.vtt"/>
 </video>