Merge "Added NSB sample Test Case documentation."

diff --cc docs/testing/user/userguide/index.rst
index c3dc57a,b030c11..61e157e
--- 1/docs/testing/user/userguide/index.rst
--- 2/docs/testing/user/userguide/index.rst
+++ b/docs/testing/user/userguide/index.rst
@@@ -23,9 -23,9 +23,10 @@@ Yardstick User Guid
     08-api
     09-yardstick_user_interface
     10-vtc-overview
 -   13-nsb-overview
 -   14-nsb_installation
 +   11-nsb-overview
 +   12-nsb_installation
 +   13-nsb_operation
     15-list-of-tcs
+    nsb/nsb-list-of-tcs
     glossary
     references