update examples

Author: gkjohnson

example/index.html

@@ -43,7 +43,7 @@
 			<div>Use "W", "E", and "R" to change transform controls mode.</div>
 		</div>
 
-		<script type="text/javascript" src="./index.js"></script>
+		<script type="module" src="./index.js"></script>
 
 	</body>