diff --git a/source/_toctree/index.rst b/source/_toctree/index.rst
new file mode 100644
index 0000000..d335a3b
--- /dev/null
+++ b/source/_toctree/index.rst
@@ -0,0 +1,6 @@
+.. toctree::
+   :numbered: 1
+
+   quality/index
+   administration/index
+   development/index
diff --git a/source/index.rst b/source/index.rst
index 5a7eb29..99f9e0b 100644
--- a/source/index.rst
+++ b/source/index.rst
@@ -3,11 +3,8 @@
    tasks
 
 .. toctree::
-   :maxdepth: 3
 
-   _toctree/quality/index
-   _toctree/administration/index
-   _toctree/development/index
+   _toctree/index
 
 .. toctree::
    :caption: Pro