Please document the reason for excluding files under the db/migrate directory in the Rails/ApplicationRecord cop's documentation, as mentioned in #1342.

Added a comment.

Adding a comment is a good approach, but can you document it? It would likely be the most helpful for users' understanding:
https://docs.rubocop.org/rubocop-rails/2.26/cops_rails.html#railsapplicationrecord

Misinterpreted the previous comment. Add a comment line to the cop file.

Thanks!