Label added

Label is added to the file,
so that link can be created to it.

Issue-ID: DOC-353

Change-Id: I38ae79a8f66aa87dc3e20a355cf262a6764cc390
Signed-off-by: Noemi Wagner <noemi.wagner@nokia.com>
diff --git a/docs/guides/onap-provider/index.rst b/docs/guides/onap-provider/index.rst
index 55702a1..5820c5e 100644
--- a/docs/guides/onap-provider/index.rst
+++ b/docs/guides/onap-provider/index.rst
@@ -2,7 +2,7 @@
 .. International License.  http://creativecommons.org/licenses/by/4.0
 .. Copyright 2017 AT&T Intellectual Property.  All rights reserved.
 
-
+.. _vnf_reqs:
 
 VNF Requirements and Guidelines
 ===============================