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

src/site/docs/tutorials/polymer-intro/index.markdown

 ---
 layout: default
 title: "Define a Custom Element"
 description: "Create a custom HTML element using Polymer."
 has-permalinks: true
 tutorial:
   id: polymer-intro
 next: fetchdata
 next-title: "Fetch Data Dynamically"
 prev: shared-pkgs
 prev-title: "Install Shared Packages"
 ---
 
 {% capture whats_the_point %}
 
 * Polymer.dart is the next evolution of Web UI.
 * Everything in Polymer.dart is an element.
 * Custom elements provide semantically meaningful encapsulation.
 * Use Polymer.dart to build custom elements.
 * Bind Dart data to HTML elements.
 * Declaratively bind event handlers to elements.
 
 {% endcapture %}
 
 {% capture sample_links %}
 
+<p> This tutorial features this example:</p>
+* stopwatch
+
 <p>
-Get the source code for the samples featured in this target:</p>
-
-<ul>
-  <li>
-    <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/polymer-intro/stopwatch"
-       target="_blank">stopwatch</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>Create a custom HTML element using Polymer</h3>
 </div>
 
@@ skipping 65 matching lines @@
 With custom elements, you can easily create new kinds of elements
 that have semantically meaningful tags and that are easy to share,
 reuse, and read.
 
 ###Overview of the example files
 
 Three main source files implement the Stopwatch example:
 
 <dl>
   <dt>
-    <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/polymer-intro/stopwatch/web/index.html" target="_blank">index.html</a>
+    index.html
   </dt>
   <dd>
     The primary HTML file for the app.
     Includes the Polymer bootstrap script and instantiates the custom element.
   </dd>
   <dt>
-    <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/polymer-intro/stopwatch/web/tute_stopwatch.html" target="_blank">tute_stopwatch.html</a>
+    tute_stopwatch.html
   </dt>
   <dd>
     The HTML code that defines the custom element.
   </dd>
   <dt>
-    <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/polymer-intro/stopwatch/web/tute_stopwatch.dart" target="_blank">tute_stopwatch.dart</a>
+    tute_stopwatch.dart
   </dt>
   <dd>
     The Dart class that implements the custom element.
   </dd>
 </dl>
 
 The following diagram shows the structure of the example
 app and its use of custom elements.
 
 ![The connections between Dart and HTML](images/connections.png)
@@ skipping 54 matching lines @@
 
 ![Instantiate a custom element with a custom tag](images/polymer-element-instantiation.png)
 
 Using best practices,
 the custom element definition is in a separate file.
 Use `link [rel="import"]` to import the HTML definition file as shown.
 
 ##Defining a custom element {#define-element} 
 
 The definition for the &lt;tute-stopwatch&gt; element is
-in
-<a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/polymer-intro/stopwatch/web/tute_stopwatch.html" target="_blank">tute_stopwatch.html</a>.
+in tute_stopwatch.html.
 A custom element definition should be in its own
 source file so that it can be included by other files.
 An HTML file that contains the definition for a custom element
 does not need &lt;html&gt;, &lt;head&gt;, or &lt;body&gt; tags.
 
 To define a custom element,
 use the &lt;polymer-element&gt; tag and provide a name.
 
 {% prettify html %}
 <polymer-element name="tute-stopwatch">
@@ skipping 35 matching lines @@
     The template can include CSS styles within a &lt;style&gt; tag.
   </dd>
 
   <dt> &lt;script&gt; </dt>
   <dd markdown="1"> Specifies a Dart script.
     For custom elements, the Dart script is a Dart class
     that implements the behavior of the element.
     The class typically overrides some
     life-cycle methods and provides event handlers
     that join the UI with its programmatic behavior.
-    In this example, the script is in
-    <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/polymer-intro/stopwatch/web/tute_stopwatch.dart" target="_blank">tute_stopwatch.dart</a>.
+    In this example, the script is in tute_stopwatch.dart.
   </dd>
 </dl>
 
 ##Providing a template for the custom element {#providing-a-template}
 
 Here's the template code for the tute-stopwatch element:
 
 ![The template code for the tute-stopwatch element](images/template-code.png)
 
 The tute-stopwatch template uses a &lt;style&gt; tag, which is optional.
@@ skipping 199 matching lines @@
 Any CSS selectors within the template need to be unique only within the template.
 
 For further details about styling custom elements,
 refer to
 [A Guide to Styling Elements](http://www.polymer-project.org/articles/styling-elements.html)
 
 ##Other resources
 
 Use these other resources to learn more about Polymer:
 
-* The tutorial
-<a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web"
-   target="_blank">github repo</a>
-   contains many examples that use Polymer,
-   including samples that have been converted from Web UI.
-
 * The
 <a href="http://www.dartlang.org/polymer-dart/"
    target="_blank">Polymer.dart</a> homepage provides information
    specific to the Dart port of the Polymer project.
 
 * The Polymer project website
 <a href="http://www.polymer-project.org/"
    target="_blank">polymer-project.org</a>
    contains information about the Polymer project as a whole.
 
 ##What next?
 
 [Two-way data binding with Polymer](/docs/tutorials/forms/#binding-data)
 in the tutorial about forms shows how to use two-way data binding
 with various types of input elements such as text fields, color pickers,
 and so on.
 
 Check out these other tutorial examples that use Polymer:
 
-* <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/fetchdata/its_all_about_you"
-    target="_blank">its_all_about_you</a>
-* <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/forms/slambook"
-    target="_blank">slambook</a>
-* <a href="https://github.com/dart-lang/dart-tutorials-samples/tree/master/web/indexeddb/count_down"
-    target="_blank">count_down</a>
+* its_all_about_you
+* slambook
+* count_down
 
 The next tutorial,
 [Fetch Data Dynamically](/docs/tutorials/fetchdata/),
 shows you how to fetch data
 and use JSON to encode and decode
 that data.
 
 {% endcapture %}
 
 {% include tutorial.html %}