pixelnest
diff --git a/‎_includes/components/promotion_header.html renamed to ‎_includes/components/promotion-header.html b/‎_includes/components/promotion_header.html renamed to ‎_includes/components/promotion-header.html
diff --git a/‎_layouts/tutorial.html
+1-1 b/‎_layouts/tutorial.html
+1-1
@@ -9,7 +9,7 @@
 <body>
   <div class="page" id="page">
     <!-- start promotion header -->
-    {% include components/promotion_header.html %}
+    {% include components/promotion-header.html %}
     <!-- end promotion header -->
 
     <!-- reduced header -->