Add Drivers to documentation
Re-organize the "internals" section into a "Developer's Guide" with
sub-pages and add the drivers documentation as one of them.
Change-Id: Ibdf0287a7a077dfeaac6c63d1c8beca8d5f3f4be
diff --git a/doc/source/developer.rst b/doc/source/developer.rst
new file mode 100644
index 0000000..527ea6e
--- /dev/null
+++ b/doc/source/developer.rst
@@ -0,0 +1,15 @@
+Developer's Guide
+=================
+
+This section contains information for Developers who wish to work on
+Zuul itself. This information is not necessary for the operation of
+Zuul, though advanced users may find it interesting.
+
+.. autoclass:: zuul.scheduler.Scheduler
+
+.. toctree::
+ :maxdepth: 1
+
+ datamodel
+ drivers
+ testing