add one note in release note

A note is added for R3 Mtn release

Change-Id: I58b435d279601cf90b951b12b7fdc2e2397676b1
Issue-ID: APPC-1375
Signed-off-by: Taka Cho <takamune.cho@att.com>
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 7cb420f..8b39180 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -40,6 +40,9 @@
 
 	- `CCSDK-741 <https://jira.onap.org/browse/CCSDK-741>`_ - Removed Work-around required for vCPE use case to correct the error described in CCSDK ticket.
  
+Special Note for `APPC-1367 <https://jira.onap.org/browse/APPC-1367>`_ - APPC fails healthcheck with 404 error:
+
+       During testing, we found there is a timing issue. When using OOM to deploy to k8s environment the clustered MariaDB database is not accessible at the time when the APPC pod is trying to insert the DG into MariaDb. This would cause the healthcheck issue. The workaround to solve this issue is redeploying the APPC pod.
 
 Version: 1.4.3
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