Update README.adoc (#326)

Author: gkwan-ibm

README.adoc

@@ -21,6 +21,9 @@
 :page-seo-description: A getting started tutorial with examples on how to create, use, and cache HTTP session data for an enterprise Java application on a Kubernetes cluster by using Java Caching (JCache).
 = Caching HTTP session data using JCache and Hazelcast
 
+[.hidden]
+NOTE: This repository contains the guide documentation source. To view the guide in published form, view it on the https://openliberty.io/guides/{projectid}.html[Open Liberty website].
+
 Learn how to create, use, and cache HTTP session data for your application.
 
 :kube: Kubernetes