add missing pages

Author: Tom Gotsman

docs/ai_builder/features/deploy_app.md

@@ -20,6 +20,9 @@ def get_sidebar_items_ai_builder_overview():
                 ai_builder.features.image_upload,
                 ai_builder.features.environment_variables,
                 ai_builder.features.installing_external_packages,
+                ai_builder.features.templates,
+                ai_builder.features.download_app,
+                ai_builder.features.deploy_app,
             ],
         ),
         create_item(