Update index.html

docs/index.html

@@ -20,7 +20,22 @@
             },
             {
                 title: 'Features',
-                path: 'features'
+                path: 'features',
+                type: 'dropdown',
+                items: [
+                    {
+                        title: 'Application Header',
+                        path: 'header'
+                    },
+                    {
+                        title: 'Side Navigation',
+                        path: 'side-nav'
+                    },
+                    {
+                        title: 'Document List',
+                        path: 'doc-list'
+                    }
+                ]
             },
             {
                 title: 'Building',