test:Update index.ts (#388)

A very small change to test a workflow update.

Author: willum070

samples/address-validation/index.ts

@@ -5,7 +5,7 @@
  */
 
 // [START maps_address_validation]
-// --- DOM Refs
+// DOM Refs
 const addressForm = document.getElementById('address-form');
 const validateButton = document.getElementById('validate-button');
 const clearFormButton = document.getElementById('clear-form-button');