fixing typo in sample azure machineset yaml

Author: jeana-redhat

modules/machineset-yaml-azure.adoc

@@ -118,7 +118,7 @@ endif::infra[]
           subnet: <infrastructure_id>-<role>-subnet <1> <2>
           userDataSecret:
             name: worker-user-data <2>
-          vmSize: qeci-22538-vnet
+          vmSize: Standard_DS4_v2
           vnet: <infrastructure_id>-vnet <1>
 ifndef::infra[]
           zone: "1" <5>