README.md: added reminder to generate model and apply migrations
README.md: added reminder to generate model and apply migrations
itbeaver/rails-admin-scaffold,henrydjacob/rails-nested-scaffold,henrydjacob/rails-nested-scaffold,itbeaver/rails-admin-scaffold,joshuapaling/rails-admin-scaffold,dhampik/rails-admin-scaffold,joshuapaling/rails-admin-scaffold