Added _index.html and screenshots to all samples.

Bug 15814554

Change-Id: Icdb08c5cc39f97c88674e4177b88b47adce59127

samples/wearable/SkeletonWearableApp/_index.html

@@ -0,0 +1,22 @@
+<p><b>About:</b> This sample is a mostly empty wearable app that implements a fullscreen activity
+conforming to Android Wear best practices. Included in the sample are examples of GridViewPager,
+DelayedConfirmationView, and DismissOverlayView. Developers who require a fullscreen activity for
+their wearable app can use this sample as a starting point.</p>
+<p><b>How to run:</b> Install the Wearable APK on the wearable, go to the voice menu (either by
+saying "OK Google" or tapping the home screen) and select the "Start..." option. Then, select
+"Skeleton Wearable App" from the submenu.</p>
+<p><b>Wearable APIs used:</b> DelayedConfirmationView, DismissOverlayView, GridViewPager,
+CardFragment, FragmentGridPagerAdapter, ImageReference</p>
+<p><b>Screenshots:</b>
+    <figure>
+        <img src="screenshots/skeleton_wearable_app.png" alt="SkeletonWearableApp" width="140"
+             height="140">
+        <img src="screenshots/grid_view_pager.png" alt="GridViewPager" width="140" height="140">
+        <img src="screenshots/delayed_confirmation.png" alt="DelayedConfirmationView" width="140"
+             height="140">
+        <img src="screenshots/dismiss_overlay.png" alt="DismissOverlayView" width="140"
+             height="140">
+        <figcaption>From left to right: the initial activity, GridViewPager,
+            DelayedConfirmationView, and DismissOverlayView</figcaption>
+    </figure>
+</p>