Cherry pick beijing improvements to master

Replicating changes made when finalizing Beijing branch
in the doc master branch.

Change-Id: Ib1da658aef8cb84f896c6abac23631579ec0b80c
Issue-ID: DOC-280
Signed-off-by: Rich Bennett <rb2745@att.com>
diff --git a/docs/guides/onap-developer/use-cases/index.rst b/docs/guides/onap-developer/use-cases/index.rst
new file mode 100644
index 0000000..d9dc0d2
--- /dev/null
+++ b/docs/guides/onap-developer/use-cases/index.rst
@@ -0,0 +1,15 @@
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+.. Copyright 2017 AT&T Intellectual Property.  All rights reserved.
+
+Use Cases
+=========
+
+Example uses case descriptions and sequence diagrams illustrating
+interactions between platform components.
+
+.. toctree::
+   :maxdepth: 1
+
+   vfw.rst
+   volte.rst