[4.1] fc7b312 Introduce new documentation placeholders

[Dridi Boukelmoune]

commit fc7b31289440d8bc70c5e523617d2d1edf0c396d
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Tue Aug 11 17:48:19 2015 +0200

    Introduce new documentation placeholders

diff --git a/doc/sphinx/reference/vmod.rst b/doc/sphinx/reference/vmod.rst
index c339f0e..57fea73 100644
--- a/doc/sphinx/reference/vmod.rst
+++ b/doc/sphinx/reference/vmod.rst
@@ -1,3 +1,5 @@
+.. _ref-vmod:
+
 %%%%%%%%%%%%%%%%%%%%%%
 VMOD - Varnish Modules
 %%%%%%%%%%%%%%%%%%%%%%
@@ -99,6 +101,9 @@ For the std VMOD, the compiled vcc_if.h file looks like this::
 Those are your C prototypes.  Notice the ``vmod_`` prefix on the function
 names and the C-types as arguments.
 
+
+.. _ref-vmod-vcl-c-types:
+
 VCL and C data types
 ====================
 
@@ -335,6 +340,20 @@ in the C-code etc, it is the VMODs own responsibility to track how
 many VCLs have called init (& fini) and free this global state
 when the count reaches zero.
 
+.. _ref-vmod-event-functions:
+
+Event functions
+===============
+
+TODO
+
+.. _ref-vmod-objects:
+
+VMOD Objects
+============
+
+TODO
+
 When to lock, and when not to lock
 ==================================