Update azure-files-volume.md

Author: andyzhangx

articles/aks/azure-files-volume.md

@@ -19,9 +19,9 @@ For more information on Kubernetes volumes, see [Storage options for application
 
 ## Before you begin
 
-This article assumes that you have an existing AKS cluster with version 1.21 or later. If you need an AKS cluster, see the AKS quickstart [using the Azure CLI][aks-quickstart-cli], [using Azure PowerShell][aks-quickstart-powershell], or [using the Azure portal][aks-quickstart-portal].
+This article assumes that you have an existing AKS cluster with 1.21 or later version. If you need an AKS cluster, see the AKS quickstart [using the Azure CLI][aks-quickstart-cli], [using Azure PowerShell][aks-quickstart-powershell], or [using the Azure portal][aks-quickstart-portal].
 
-If you want to interact with Azure Files on an AKS cluster with version 1.20 or below, see the [Kubernetes plugin for Azure Files][kubernetes-files].
+If you want to interact with Azure Files on an AKS cluster with 1.20 or previous version, see the [Kubernetes plugin for Azure Files][kubernetes-files].
 
 ## Create an Azure file share