Fixes #411: Corrected name of secret roles page

netbox/templates/secrets/secretrole_list.html

@@ -12,7 +12,7 @@
         </a>
     {% endif %}
 </div>
-<h1>Device Roles</h1>
+<h1>Secret Roles</h1>
 <div class="row">
 	<div class="col-md-12">
         {% include 'utilities/obj_table.html' with bulk_delete_url='secrets:secretrole_bulk_delete' %}