removing links to github in favor of downloading a zipfile from github

src/site/docs/tutorials/indexeddb/index.markdown

 ---
 layout: default
 title: "Use IndexedDB"
 description: "Use IndexedDB for persistence and offline capability for your app."
 has-permalinks: true
 tutorial:
   id: indexeddb
 next: 
 next-title: "Home"
 prev: forms/
 prev-title: "Get Input from a Form"
 ---
 
 {% capture whats_the_point %}
 
 * IndexedDB is a new standard for client-side storage in modern web browsers.
 * Client-side storage provides persistence, offline capability,
 and other advantages.
 * IndexedDB lets you store significant amounts of structured data.
 * Indices allow for high performance searches.
 * The dart:indexed_db library provides the API for IndexedDB for Dart apps.
 * Save and retrieve data in IndexedDB using key-value pairs.
 
 {% endcapture %}
 
 {% capture sample_links %}
 
+
+<p> This tutorial features this example:</p>
+* count_down
+
 <p>
-Get the source code for the example featured in this tutorial:</p>
-
-<ul>
-  <li>
-    <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/indexeddb/count_down"
-       target="_blank">count_down</a>
-  </li>
-</ul>
+Don't have the source code?
+<a href="https://github.com/dart-lang/dart-tutorials-samples/archive/master.zip">
+  Download it.
+</a>
 
 {% endcapture %}
 
 {% capture content %}
 
 <div class="tute-target-title">
 <h1>{{page.title}}</h1>
 <h3>Save data on the client.</h3>
 </div>
 
@@ skipping 73 matching lines @@
 
 Use the minus (**-**) button to the right of a milestone
 to delete that milestone.
 Use the **Clear** button to delete all the milestones.
 
 <iframe class="running-app-frame"
         style="height:400px;width:600px;"
         src="examples/count_down/out/web/count_down.html">
 </iframe>
 
-You can find the complete source code for this sample on github at
-<a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/indexeddb/count_down" target="_blank">count_down</a>.
-
 ###Using developer tools to look at the database
 
 You can use the browser's developer tools
 to explore the IndexedDB databases used by your apps.
 In Chrome, select **View&nbsp;>&nbsp;Developer&nbsp;>&nbsp;Developer Tools**,
 then choose **Resources** from the tabs along the top of the window.
 The following diagram shows the database
 for the count_down app with two milestones.
 
 The count_down app has a single database named `milestoneDB`.
@@ skipping 566 matching lines @@
 
 ###What next?
 
 You've completed the tutorials!
 Check out the Dart
 [code samples](/samples/) and [articles](/articles/).
 
 {% endcapture %}
 
 {% include tutorial.html %}