Updated git submodules

Project: optf/has master 6962b915986486f4dad166e7b3de7089311ac2c4

Updated headers to display correct pages

Updated headers so that when the release notes
docs were referenced in main documentation, they
would be displayed properly.

Change-Id: I27bfebe3cc4ba28272a367a4696037cdc94707e5
Issue-Id: DOC-47
Signed-off-by: jsseidel <spence@research.att.com>

diff --git a/docs/submodules/optf/has.git b/docs/submodules/optf/has.git
index 8a953e2..6962b91 160000 (submodule)
--- a/docs/submodules/optf/has.git
+++ b/docs/submodules/optf/has.git
@@ -1 +1 @@
-Subproject commit 8a953e2c7005143275c9706775ff0f5eda81df7d
+Subproject commit 6962b915986486f4dad166e7b3de7089311ac2c4