Docs: Adding SELinux doc to site and nav.
Bug: 9175117
Staging location:
http://claym.mtv.corp.google.com:8093/devices/tech/security/se-linux.html

Change-Id: I2b87d71f8a5416df187f75705e7b334a74a6771e
diff --git a/src/devices/devices_toc.cs b/src/devices/devices_toc.cs
index 64ff7dc..5446c74 100644
--- a/src/devices/devices_toc.cs
+++ b/src/devices/devices_toc.cs
@@ -169,10 +169,15 @@
                 <span class="en">Security Enhancements in Android 4.3</span>
               </a>
             </li>
+            <li>
+              <a href="<?cs var:toroot ?>devices/tech/security/se-linux.html">
+                <span class="en">Security-Enhanced Linux</span>
+              </a>
+            </li>
+
           </ul>
       </li>
 
-
       <li class="nav-section">
         <div class="nav-section-header">
           <a href="<?cs var:toroot ?>devices/tech/test_infra/tradefed/index.html">