To update docs

[gabrielcostasilva]

References:

• https://github.com/varvet/pundit
• https://guides.rubyonrails.org/active_record_migrations.html

[gabrielcostasilva]

This article provides a good initial explanation, and an alternative gem: https://blog.appsignal.com/2023/10/04/using-action-policy-for-a-ruby-on-rails-app-the-basics.html