Rails [Application Template](https://guides.rubyonrails.org/rails_application_templates.html) to add RSpec as the testing framework

rspec_template.rb

#
# To use this temlate, which sets RSpec as the testing framework:
#
#     rails new my-app --skip-test -m ~/rspec_template.rb
#

gem_group :development, :test do
  gem "rspec-rails"
end

generate "rspec:install"

after_bundle do
  run "bundle binstubs rspec-core"
end