Making StackWidget sample code stand alone as opposed to bundled with HoneycombGallery

Change-Id: I9da8433ee8a9710f5a5362a6f82fc96d4f456c88
diff --git a/samples/StackWidget/_index.html b/samples/StackWidget/_index.html
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+++ b/samples/StackWidget/_index.html
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+<p>
+    This sample shows how to construct a simple collection widget. This particular example shows how
+    to create a widget containing a <a href="../../../reference/android/widget/StackView.html"><code>StackView</code></a>
+    ; however, only minimal changes are required to include
+    a <a href="../../../reference/android/widget/ListView.html"><code>ListView</code></a>,
+    <a href="../../../reference/android/widget/GridView.html"><code>GridView</code></a> or
+    <a href="../../../reference/android/widget/AdapterViewFlipper.html"><code>AdapterViewFlipper</code></a> instead.
+</p>
+<p>
+    The sample demonstrates the following:
+</p>
+    <ul>
+        <li>
+            The pattern for creating and wiring a <a href="../../../reference/android/widget/RemoteViewsService.html"><code>RemoteViewsService</code></a>
+            and <a href="../../../reference/android/widget/RemoteViewsService.RemoteViewsFactory.html"><code>RemoteViewsFactory</code></a> which
+            serve the function of an adapter for the widget collection.
+        </li>
+        <li>
+            The pattern for setting an intent template and fill-in intents in order to
+            provide children of the collection with click behaviour.
+        </li>
+        <li>
+            How to make a widget with a <a href="../../../reference/android/widget/StackView.html"><code>StackView</code></a>
+            (or <a href="../../../reference/android/widget/AdapterViewFlipper.html"><code>AdapterViewFlipper</code></a>) auto-advance.
+        </li>
+        <li>
+            How to set a widget preview image.
+        </li>
+    </ul>
+<img alt="The widget."
+     src="../images/StackWidget.png"/>
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