Revert "Removed CoderDojo section"

This reverts commit ed2f945.

views/index.erb

@@ -78,6 +78,38 @@
   <a class="button" href="/hosts">Learn about hosting and facilitating</a>
 </section>
 
+<div class="coderdojo-background">
+  <section class="coderdojo">
+    <h2>Paying it Forward</h2>
+
+    <div class="content">
+      <div class="video">
+        <iframe src="//www.youtube.com/embed/z_gcHGa8J1E"
+                frameborder="0" allowfullscreen>
+        </iframe>
+      </div>
+
+      <div class="description">
+        <a class="coderdojo-link" href="https://coderdojo.com/">
+          <img src="https://coderdojo.com/wp-content/themes/coderdojo/images/logo.png"/>
+        </a>
+        <p>
+        This year's Global Day of Coderetreat supported
+        <a href="http://coderdojo.com">CoderDojo</a>: a worldwide,
+        volunteer-driven movement of programming clubs for young people.
+        The funds not used to support GDCR went to CoderDojo.
+        </p> <p>
+        Be Cool and join us!
+        <a href="http://coderetreat.org/profiles/blogs/coderdojo-and-gdcr14">
+          Read this blog post
+        </a>
+        to learn more about how you can support CoderDojo.
+        </p>
+      </div>
+    </div>
+  </section>
+</div>
+
 <section class="sponsors">
     <div class="new-sponsor">
         <h3>You could be a sponsor</h3>