fix grammar

Author: maltesander

CHANGELOG.md

@@ -7,7 +7,7 @@ All notable changes to this project will be documented in this file.
 ### Added
 
 - Add support for Hive `4.0.0` ([#508]).
-- The operator can now run on Kubernetes clusters using a non-default cluster domain
+- The operator can now run on Kubernetes clusters using a non-default cluster domain.
   Use the env var `KUBERNETES_CLUSTER_DOMAIN` or the operator Helm chart property `kubernetesClusterDomain` to set a non-default cluster domain ([#522]).
 
 ### Changed