Add h2 to personal info page, fixing accessibility issue

Signed-off-by: Jan C. Borchardt <hey@jancborchardt.net>

apps/settings/templates/settings/personal/personal.info.php

@@ -36,7 +36,8 @@ script('settings', [
 ?>
 
 <div id="personal-settings" data-lookup-server-upload-enabled="<?php p($_['lookupServerUploadEnabled'] ? 'true' : 'false') ?>">
-<div id="personal-settings-avatar-container" class="personal-settings-container">
+	<h2 class="hidden-visually"><?php p($l->t('Personal info')); ?></h2>
+	<div id="personal-settings-avatar-container" class="personal-settings-container">
 		<div>
 			<form id="avatarform" class="section" method="post" action="<?php p(\OC::$server->getURLGenerator()->linkToRoute('core.avatar.postAvatar')); ?>">
 				<h3>