it should get the TOC from the global _toc.yaml...

_toc.yml

@@ -21,6 +21,15 @@ chapters:
   - file: admin-guide/index
     sections:
       - file: admin-guide/architecture
+        section:
+          - file: admin-guide/architecture/overview
+          - file: admin-guide/architecture/accounts-and-groups
+          - file: admin-guide/architecture/authentication-authorization
+          - file: admin-guide/architecture/networking
+          - file: admin-guide/architecture/services-cron-etc
+          - file: admin-guide/architecture/version-control
+          - file: admin-guide/architecture/security
+          - file: admin-guide/architecture/active-directory
       - file: admin-guide/configuration
         sections:
           - file: admin-guide/configuration/hostname

admin-guide/architecture.md

@@ -0,0 +1,6 @@
+# Architecture
+
+Contents:
+
+```{tableofcontents}
+```

admin-guide/architecture.rst

@@ -1,18 +0,0 @@
-==============
- Architecture
-==============
-
-
-Contents:
-
-.. toctree::
-   :maxdepth: 2
-
-   architecture/overview
-   architecture/accounts-and-groups
-   architecture/authentication-authorization
-   architecture/networking
-   architecture/services-cron-etc
-   architecture/version-control
-   architecture/security
-   architecture/active-directory