Update articles/machine-learning/how-to-deploy-kubernetes-extension.md

Co-authored-by: Samantha Salgado <[email protected]>

Author: Bozhong68

articles/machine-learning/how-to-deploy-kubernetes-extension.md

@@ -28,7 +28,7 @@ In this article, you can learn:
 
 ## Prerequisites
 
-* An AKS cluster is up and running in Azure. If you have not previously used cluster extensions, you need to [register the KubernetesConfiguration service provider](../aks/dapr.md#register-the-kubernetesconfiguration-service-provider).
+* An AKS cluster running in Azure. If you have not previously used cluster extensions, you need to [register the KubernetesConfiguration service provider](../aks/dapr.md#register-the-kubernetesconfiguration-service-provider).
 * Or an Arc Kubernetes cluster is up and running. Follow instructions in [connect existing Kubernetes cluster to Azure Arc](../azure-arc/kubernetes/quickstart-connect-cluster.md).
   * If the cluster is an Azure RedHat OpenShift Service (ARO) cluster or OpenShift Container Platform (OCP) cluster, you must satisfy other prerequisite steps as documented in the [Reference for configuring Kubernetes cluster](./reference-kubernetes.md#prerequisites-for-aro-or-ocp-clusters) article.
 * The Kubernetes cluster must have minimum of 4 vCPU cores and 8-GB memory.