Added Release Checklist to PDK. Original content written by Dianne.
diff --git a/pdk/docs/guide/pdk_toc.cs b/pdk/docs/guide/pdk_toc.cs
index d1493e6..f829d43 100644
--- a/pdk/docs/guide/pdk_toc.cs
+++ b/pdk/docs/guide/pdk_toc.cs
@@ -16,6 +16,7 @@
      </ul>
      </li>
      <li><a href="<?cs var:toroot ?>guide/release_keys.html">Release Keys and Signing Builds</a></li> 
+     <li><a href="<?cs var:toroot ?>guide/release_checklist.html">Release Checklist</a></li>
  </ul>
 </li>