Fix syntax error

app/helpers/merge_requests_helper.rb

@@ -15,12 +15,14 @@ module MergeRequestsHelper
   end
 
   def new_mr_from_push_event(event, target_project)
-    return merge_request: {
+    return {
+      merge_request: {
         source_project_id: event.project.id,
         target_project_id: target_project.id,
         source_branch: event.branch_name,
         target_branch: target_project.repository.root_ref
       }
+    }
   end
 
   def mr_css_classes(mr)