fix example (#167)

quickstart/101-windows-vm-with-iis-server/outputs.tf

@@ -3,5 +3,10 @@ output "resource_group_name" {
 }
 
 output "public_ip_address" {
-  value = azurerm_windows_virtual_machine.my_terraform_vm.public_ip_address
+  value = azurerm_windows_virtual_machine.main.public_ip_address
+}
+
+output "admin_password" {
+  sensitive = true
+  value     = azurerm_windows_virtual_machine.main.admin_password
 }