[4.0] 774d865 Add link to the man page

[Per Buer]

commit 774d86583d2a48d7bf34e63e49d29cf167c25f85
Author: Per Buer <perbu at varnish-software.com>
Date:   Tue Mar 4 13:54:05 2014 +0100

    Add link to the man page

diff --git a/doc/sphinx/users-guide/vcl-syntax.rst b/doc/sphinx/users-guide/vcl-syntax.rst
index 15b6da3..889ea97 100644
--- a/doc/sphinx/users-guide/vcl-syntax.rst
+++ b/doc/sphinx/users-guide/vcl-syntax.rst
@@ -9,6 +9,9 @@ preferences.
 
 Note that VCL doesn't contain any loops or jump statements.
 
+This document gives an outline of the most important parts of the
+syntax. For a full documentation of VCL syntax please see
+:ref:`reference-vcl` in the reference.
 
 Strings
 ~~~~~~~