[master] a74e465 pointer to the release notes

[Nils Goroll]

commit a74e465b37152fb35b33b35fdcbc4ce4f3083f3a
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Wed Sep 14 13:03:07 2016 +0200

    pointer to the release notes

diff --git a/doc/changes.rst b/doc/changes.rst
index ba2d902..d26b7bd 100644
--- a/doc/changes.rst
+++ b/doc/changes.rst
@@ -6,6 +6,9 @@ This is the first beta release of the upcoming 5.0 release.
 
 The list of changes are numerous and will not be expanded on in detail.
 
+The release notes contain more background information and are highly
+recommended reading before using any of the new features.
+
 Major items:
 
 * VCL labels, allowing for per-vhost (or per-anything) separate VCL files.