[AKS] Update example help text to reflect change of defaults to Standard LB and VMSS (#11791)

Author: seanmck

src/azure-cli/azure/cli/command_modules/acs/_help.py

@@ -327,7 +327,7 @@
     text: az aks create -g MyResourceGroup -n MyManagedCluster --node-count 7
   - name: Create a kubernetes cluster with k8s 1.13.9 but use vmas.
     text: az aks create -g MyResourceGroup -n MyManagedCluster --kubernetes-version 1.13.9 --vm-set-type AvailabilitySet
-  - name: Create a kubernetes cluster with default kubernetes version, default SKU load balancer(basic) and default vm set type(AvailabilitySet).
+  - name: Create a kubernetes cluster with default kubernetes version, default SKU load balancer (Standard) and default vm set type (VirtualMachineScaleSet).
     text: az aks create -g MyResourceGroup -n MyManagedCluster
   - name: Create a kubernetes cluster with standard SKU load balancer and two AKS created IPs for the load balancer outbound connection usage.
     text: az aks create -g MyResourceGroup -n MyManagedCluster --load-balancer-managed-outbound-ip-count 2