README

This README would normally document whatever steps are necessary to get the application up and running.

Things you may want to cover:

ruby '2.6.4'
bundle install
rails db:migrate
rails db:seed
yarn add bootstrap jquery popper.js/core
bundle exec rails webpacker:install
http://localhost:3000/api/subscribe

https://medium.com/@guilpejon/how-to-install-bootstrap-4-3-in-a-rails-6-app-using-webpack-9eae7a6e2832