fix: lms quiz type error (#21152)

diff --git a/erpnext/www/lms/content.html b/erpnext/www/lms/content.html
index 5607c08..cdc7141 100644
--- a/erpnext/www/lms/content.html
+++ b/erpnext/www/lms/content.html
@@ -63,7 +63,7 @@
 		</a>
 	</div>
 	<div>
-		<h1>{{ content.name }} <span class="small text-muted">({{ position + 1 }}/{{length}})</span></h1>
+		<h2>{{ content.name }} <span class="small text-muted">({{ position + 1 }}/{{length}})</span></h2>
 	</div>
 {% endmacro %}