Release notes and openapi yml update

- add to rst file and update the rest api changes

Issue-ID: CPS-1846
Change-Id: I242fc98c025ffe0bf654640ad16dfef2bb0fcbaf
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 3f672ad..157f62e 100755
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -40,6 +40,7 @@
 ---------
 3.3.6
     - `CPS-1841 <https://jira.onap.org/browse/CPS-1841>`_ Update of top-level data node fails with exception
+    - `CPS-1842 <https://jira.onap.org/browse/CPS-1842>`_ Replace event-id with correlation-id for data read operation cloud event
 
 Features
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