dcae doc updates

Change-Id: Ia63b7669d55c929d729663418747ab7e52ae89d4
Signed-off-by: VENKATESH KUMAR <vv770d@att.com>
Issue-ID: DCAEGEN2-772
diff --git a/docs/sections/installation_heat.rst b/docs/sections/installation_heat.rst
index 82f9394..20242c0 100644
--- a/docs/sections/installation_heat.rst
+++ b/docs/sections/installation_heat.rst
@@ -88,6 +88,7 @@
         * Missing Heartbeat Detection analytics,
         * Universal Mapper
 
+Note: Missing Heartbeat and Universal Mapper are not part of official Casablanca release
 
 Tips for Manual Interventions
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