Update CVM configurable cluster template

Author: rajeshkumarar

quickstarts/microsoft.azurestackhci/create-cluster-cvm-intent/README.md

@@ -0,0 +1,17 @@
+---
+description: This template creates a Confidential VM (CVM) ready Azure Stack HCI cluster using an ARM template.
+page_type: sample
+products:
+- azure
+- azure-resource-manager
+urlFragment: create-cvm-configurable-cluster
+languages:
+- json
+---
+# Deploy a Confidential VM (CVM) ready Azure Stack HCI Cluster
+
+## Introduction
+
+Confidential VMs (CVM) offer strong security and confidentiality benefits over standard VMs. CVMs provide a robust hardware-based isolation between other virtual machines, the hypervisor, and host management code.
+
+This template deploys an Azure Stack HCI cluster configured with the `confidentialVmIntent` parameter, set to **Enable** for deploying Confidential VMs on Azure Local.