Add Use case summery page for release notes

Issue-ID: INT-748

Change-Id: Ib22dba23854194be4052f869a40cea12d74dea4a
Signed-off-by: helenc878 <helen.chen@huawei.com>
diff --git a/docs/docs_vfwHPA.rst b/docs/docs_vfwHPA.rst
index bbd62c0..6adb91a 100644
--- a/docs/docs_vfwHPA.rst
+++ b/docs/docs_vfwHPA.rst
@@ -2,6 +2,8 @@
 .. http://creativecommons.org/licenses/by/4.0
 .. Copyright 2018 ONAP
 
+.. _docs_vfw_hpa:
+
 vFW with HPA Tutorial: Setting Up and Configuration
 ----------------------------------------------------