Add banner in missing pages

app/views/projects/empty.html.haml

@@ -6,6 +6,10 @@
 = render "projects/head"
 = render "home_panel"
 
+%div{ 'class' => container_class }
+  - if show_auto_devops_callout?(@project)
+    = render 'shared/auto_devops_callout'
+
 .row-content-block.second-block.center
   %h3.page-title
     The repository for this project is empty

app/views/projects/merge_requests/index.html.haml

@@ -14,10 +14,12 @@
 
 = render 'projects/last_push'
 
+%div{ class: container_class }
+  - if show_auto_devops_callout?(@project)
+    = render 'shared/auto_devops_callout'
+
 - if @project.merge_requests.exists?
   %div{ class: container_class }
-    - if show_auto_devops_callout?(@project)
-      = render 'shared/auto_devops_callout'
     .top-area
       = render 'shared/issuable/nav', type: :merge_requests
       .nav-controls