Added introductory tables to Chrome apps APIs.

chrome/common/extensions/docs/templates/intros/commands.html

Index: chrome/common/extensions/docs/templates/intros/commands.html
diff --git a/chrome/common/extensions/docs/templates/intros/commands.html b/chrome/common/extensions/docs/templates/intros/commands.html
index dd11e4a934089d5b79ad4a1d2e6c595742903df9..03b37de9842474318a0ab0e780754f66f2aa5066 100644
--- a/chrome/common/extensions/docs/templates/intros/commands.html
+++ b/chrome/common/extensions/docs/templates/intros/commands.html
@@ -1,8 +1,24 @@
-<p>
-The commands API allows you to add keyboard shortcuts that trigger actions in
-your extension. An action can be opening the browser action or page action popup
-or sending a command to the extension.
-</p>
+<table class="intro">
+  <tr>
+    <th scope="col"></th>
+    <th scope="col"></th>
+  </tr>
+  <tr>
+    <td><strong>Description:</strong></td>
+    <td>Use the commands API to add keyboard shortcuts
+    that trigger actions in your extension,
+    for example, an action to open the browser action
+    or send a command to the extension.</td>
+  </tr>
+  <tr>
+    <td><strong>Availability:</strong></td>
+    <td>On target to be stable in Chrome 25</td>
+  </tr>
+  <tr>
+    <td><strong>Permissions:</strong></td>
+    <td>None</td>
+  </tr>
+</table>
 
 <h2 id="manifest">Manifest</h2>
 <p>