Update release notes with known issue.

Issue-ID: SO-660

Change-Id: I6d07e5b6009e4c130078853ffce3383c1db2d31a
Signed-off-by: seshukm <seshu.kumar.m@huawei.com>
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 79b1313..94b7822 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -30,7 +30,8 @@
 The defects fixed in this release could be found `here <https://jira.onap.org/issues/?jql=project%20%3D%20SO%20AND%20affectedVersion%20%3D%20%22Beijing%20Release%22%20AND%20status%20%3D%20Closed%20>`_.
 
 **Known Issues**
-	NA
+SO docker image is still on ecmop and not onap in the repository. 
+This will be addressed in the next release.
 
 **Security Notes**