activate unfinished feature

assets/sass/_theme/design-system/hero.sass

@@ -33,15 +33,15 @@
     nav + .content
         padding-top: 0
     // TODO : handle hero with image
-    // @if $breadcrumb-below-h1
-    //     .container:first-child
-    //         display: flex
-    //         flex-direction: column
-    //         nav + .content
-    //             margin-top: 0
-    //         .breadcrumb-nav
-    //             order: 3
-    //             margin-top: $spacing3
+    @if $breadcrumb-below-h1
+        .container:first-child
+            display: flex
+            flex-direction: column
+            nav + .content
+                margin-top: 0
+            .breadcrumb-nav
+                order: 3
+                margin-top: $spacing3
 
     @include media-breakpoint-down(desktop)
         .breadcrumb-nav