Change woridng to clarify OpenSearch support

Author: MoteHue

doc/source/configuration/cloudkitty.rst

@@ -19,9 +19,11 @@ storage backend. Set the following in ``kolla.yml``:
   # Explicitly disable influxdb as we are using OpenSearch as the CloudKitty backend
   kolla_enable_influxdb: false
 
-Set Prometheus as the backend for both the collector and fetcher, and Elasticsearch as the
-storage backend. Note that this is patched in our fork of CloudKitty to also
-work with OpenSearch. Proper support is still pending in Kolla-Ansible `here
+Set Prometheus as the backend for both the collector and fetcher, and
+Elasticsearch as the storage backend. Note that our fork of CloudKitty is
+patched so that the CloudKitty Elasticsearch V2 storage backend will also work
+with an OpenSearch cluster. Proper support for the V2 OpenSearch storage
+backend is still pending in Kolla-Ansible `here
 <https://review.opendev.org/c/openstack/kolla-ansible/+/898555>`__. Set the
 following in ``kolla/globals.yml``: