[CMPV2-CERT-PROVIDER][DOC] Improve documentation

  - Improve CMPv2 assets upgrade instructions

Issue-ID: OOM-2753
Signed-off-by: Joanna Jeremicz <joanna.jeremicz@nokia.com>
Change-Id: I625cf42ab4e57e92c10445d91b3b536df606aef4
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 730acd5..bb9c2e8 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -97,8 +97,10 @@
 
   #. Update the CRD definition::
 
-     > kubectl -n onap apply -f cmpv2-cert-provider/crds/cmpv2issuer.yaml
-  #. Upgrade the component
+     > kubectl -n onap apply -f oom/kubernetes/platform/components/cmpv2-cert-provider/crds/cmpv2issuer.yaml
+  #. Upgrade the component::
+
+     > helm -n onap upgrade dev-platform oom/kubernetes/platform
   #. Make sure that *cmpv2issuer* contains correct value for
      *spec.updateEndpoint*. The value should be: *v1/certificate-update*.
      If it's not, edit the resource::