addressed feedback

Author: Nickomang

articles/aks/cluster-extensions.md

@@ -123,13 +123,10 @@ az extension update --name k8s-extension
 
 Currently, no extensions are available.
 
-## Supported Regions and Kubernetes versions
+## Supported regions and Kubernetes versions
 
 Cluster extensions can be used on AKS clusters in the regions listed in [Azure Arc enabled Kubernetes region support][arc-k8s-regions].
 
->[!NOTE]
-> The list of supported regions will continue to expand as we rollout this functionality to more regions where AKS is available.
-
 For supported Kubernetes versions, refer to the corresponding documentation for each extension.
 
 ## Usage of cluster extensions