Update archivable.rb

Author: northeastprince

app/models/hackathon/website/archivable.rb

@@ -46,6 +46,9 @@ def archive_with(job_id)
   end
 
   class FollowUpJob < ApplicationJob
+    limits_concurrency to: 15, duration: 1.minute, group: "Wayback Machine", key: "API"
+    queue_as :low
+    
     def perform(hackathon, id)
       hackathon.follow_up_on_archive(id)
     end