README.md in metasploit_data_models-4.1.4 vs README.md in metasploit_data_models-5.0.0

@@ -39,9 +39,17 @@
 
 **This gem's `Rails::Engine` is not required automatically.** You'll need to also add the following to your `config/application.rb`:
 
     require 'metasploit_data_models/engine'
 
+`ArelHelper` classes must also be included in your applications `app/models/application_record.rb` class:
+
+    class ApplicationRecord < ActiveRecord::Base
+      self.abstract_class = true
+      include ArelHelpers::ArelTable
+      include ArelHelpers::JoinAssociation
+    end
+
 ### Metasploit Framework
 
 In Metasploit Framework, `MetasploitDataModels::Engine` is loaded, but the data models are only if the user wants to use
 the database.