add security to main page

Author: kikofernandez

_layouts/default.html

@@ -66,6 +66,7 @@
                     <li class="nav-item"><a class="nav-link" href="{{ '/community' | relative_url }}">Community</a></li>
                     <li class="nav-item"><a class="nav-link" href="{{ '/news' | relative_url }}">News</a></li>
                     <li class="nav-item"><a class="nav-link" href="{{ '/blog' | relative_url }}">Blog</a></li>
+                    <li class="nav-item"><a class="nav-link" href="{{ '/security' | relative_url }}">Security</a></li>
                     <li class="nav-item"><a class="nav-link" href="{{ '/eep' | relative_url }}">EEP</a></li>
                     <li class="nav-item"><a class="nav-link" href="{{ '/about' | relative_url }}">About</a></li>
                 </ul>