Fixed broken link in home page

Also updated Udacity Mobile Web Development Course link

Review URL: https://codereview.chromium.org/170753003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251983 0039d316-1c4b-4281-b951-d872f2087c98

chrome/docs/index.html

@@ -3,9 +3,9 @@
 <section class="g-section g-tpl-67-33"> 
   <div class="g-unit g-first">
     <article class="g-content" id="featured">
-      <a href="/devtools/remote-debugging.html"><img src="{{static}}/images/mocks/multidevice.png" class="screenshot"></a>
+      <a href="/devtools/docs/remote-debugging"><img src="{{static}}/images/mocks/multidevice.png" class="screenshot"></a>
       <h4 class="label">Featured article</h4>
-      <a href="/devtools/remote-debugging.html"><h1>Mobile DevTools: Remote Debugging for Android with Screencast</h1></a>
+      <a href="/devtools/docs/remote-debugging"><h1>Mobile DevTools: Remote Debugging for Android with Screencast</h1></a>
       <p class="description">
       Until now, while remote debugging a mobile device,
       you had to shift your eyes back and forth between the device and your desktop machine.
@@ -18,15 +18,15 @@
       Typing on the desktop keyboard also sends keystrokes to the device --
       much better than typing with your thumbs!
       </p>
-      <p><button class="button"><a href ="/devtools/remote-debugging.html">Learn more</a></button></p>
+      <p><button class="button"><a href ="/devtools/docs/remote-debugging">Learn more</a></button></p>
     </article>
   </div>
   <div class="g-unit g-last" id="upcoming-events">
     <article class="g-content">
-      <a href="https://developers.google.com/live/shows/5371585095532544-5707702298738688"><img src="{{static}}/images/mocks/udacity.png" class="screenshot"></a>
-      <h4 class="label">Upcoming Event</h4>
-      <a href="https://developers.google.com/live/shows/5371585095532544-5707702298738688"><h2>Udacity Mobile Web Dev Office Hours</h2></a>
-      <p class="description"><a href="https://developers.google.com/live/shows/5371585095532544-5707702298738688">Learn more</a></p>
+      <a href="https://developers.google.com/live/shows/6225095357890560"><img src="{{static}}/images/mocks/udacity.png" class="screenshot"></a>
+      <h4 class="label">Recently Aired</h4>
+      <a href="https://developers.google.com/live/shows/6225095357890560"><h2>Udacity Mobile Web Development Course</h2></a>
+      <p class="description"><a href="https://developers.google.com/live/shows/6225095357890560">Learn more</a></p>
     </article>
     <article class="g-content">
       <a href="https://developers.google.com/live/shows/5035410623299584"><img src="{{static}}/images/mocks/webview_video_thumb.png" class="screenshot"></a>