Would it be helpful to update the instructions for the placement of require 'capybara/rspec'? It might even be helpful just to specify that for RSpec 3.x the new location is rails_helper.rb.
The location can be inferred from the initial setup. Closed issue to refrain from redundancy.
Update documentation for current versions of Rails
I could be mistaken but shouldn't the new typical place to insert require 'capybara/rspec' be in the rails_helper.rb?