add google IO byte video to kiosk app page

chrome/common/extensions/docs/templates/articles/manifest/kiosk_enabled.html

 <h1>Kiosk Apps</h1>
 
 
 
 <p>Kiosk Apps are Chrome Apps that are designed to always run fullscreen using <a
 href="https://support.google.com/chromebook/answer/3134673">Single App Kiosk Mode</a>
 on Chrome OS and do not allow the user to exit
 the app. They're great for a purpose-built Chrome device, such as a guest
 registration desk, a library catalog station, or a point-of-sale system in a store.</p>
 
 <p>A Kiosk App can be launched manually or set to automatically launch when the
 device boots up. You can use a Chrome device as a kiosk by turning on Single App Kiosk mode <a
   href="https://support.google.com/chromebook/answer/3134673">manually for each device</a>,
   or across multiple devices using the <a
   href="https://support.google.com/chrome/a/answer/3017014">Chrome management console</a>.</p>
 
+<iframe width="560" height="315" src="//www.youtube.com/embed/aGvFbBt-LNA?autohide=1"
+frameborder="0" allowfullscreen></iframe>
 
 
 <h2 id="Look">How they look</h2>
 
 <p>Once the Kiosk App starts, the user experience is dedicated to the tasks defined by the app. The
 app does not look like the traditional Chrome browser: there is no window frame, no Omnibox
 (address bar), no tab strip, and no other browser interface elements. So as a developer, every
 pixel of the screen is yours to use as you wish.</p>
 
 
@@ skipping 72 matching lines @@
   <li><a href=
 "https://github.com/KioskApps/InfoHub"
 >LiveStream/Interactive display app</a></li>
   <li><a href=
 "https://github.com/KioskApps/SalesPoint"
 >Point of sale app</a></li>
   <li><a href=
 "https://github.com/KioskApps/QuickTicket"
 >Movie theater app</a></li>
 </ul>