set default gang name

db/migrate/20201007213411_add_initial_gang_and_connect_to_homies.rb

@@ -2,7 +2,7 @@ class AddInitialGangAndConnectToHomies < ActiveRecord::Migration[5.2]
   def up
     # execute "INSERT INTO gangs SELECT 'name' WHERE NOT EXISTS (SELECT * FROM gangs)"
     if Gang.count.zero?
-      Gang.create.save
+      Gang.create(name: 'Default').save
     end
     gang = Gang.first