gistfile1.txt

$ mv MyNotes MyNotesOld
$ rails new MyNotes
$ cd MyNotes

# dans le Gemfile
gem 'quiet_assets'
gem 'thin'
gem 'simple_form'

$ bundle install
$ rails generate simple_form:install --bootstrap

$ rails generate scaffold note title:string content:text
$ rake db:migrate

$ rm -f public/index.html
$ rails server