Update index.html
Add region tags for docs.
diff --git a/java/example/war/index.html b/java/example/war/index.html
index 25135f1..56d8713 100644
--- a/java/example/war/index.html
+++ b/java/example/war/index.html
@@ -14,6 +14,7 @@
<td style="font-weight: bold;">Upload a file to Google Cloud Storage:</td>
</tr>
<tr>
+<!--[START user_input]-->
<td>
<form action="/index.html" enctype="text/plain" method="get" name="putFile" id="putFile">
<div>
@@ -45,6 +46,7 @@
</form>
</td>
</tr>
+<!--[END user_input]-->
</table>
<script>
function setDownloadDefaults() {
