Updates to policy documentation

Updated release notes, installation and policygui documentation
---------------------------------------------------------------

Change-Id: I667ba9ea71b001f5bb35ae86cbcde6063edef308
Issue-Id: POLICY-242
Signed-off-by: Saryu Shah <ss3917@att.com>
diff --git a/docs/platform/policygui.rst b/docs/platform/policygui.rst
index 6365897..4e47f51 100644
--- a/docs/platform/policygui.rst
+++ b/docs/platform/policygui.rst
@@ -28,16 +28,17 @@
 Target Users
 ^^^^^^^^^^^^
 
-To be completed
+The typical targetted users are operations people who have the responsibility and authority to create and manage policies that control network operations, 
+including policy based network configuration and auto-corrective actions.
 
 Interface Type
 ^^^^^^^^^^^^^^
 
-To be completed
+The POLICY GUI is a graphical user interface available via web-access.
 
 Access
 ^^^^^^
 
-To be completed
+The POLICY GUI can be accessed via the ONAP Portal.