Update supported-instances-and-regions.md

Author: ianwhytez

articles/baremetal-infrastructure/workloads/nc2-on-azure/supported-instances-and-regions.md

@@ -16,7 +16,7 @@ Learn about instances and regions supported for NC2 on Azure.
 Nutanix Clusters on Azure supports:
 
 * Minimum of three bare metal nodes per cluster.
-* Maximum of 16 bare metal nodes.
+* Maximum of 13 bare metal nodes.
 * Only the Nutanix AHV hypervisor on Nutanix clusters running in Azure.
 * Prism Central instance deployed on Nutanix Clusters on Azure to manage the Nutanix clusters in Azure.