disallow destruction of recipes
comment out recipe destroy html <!--, not erb <%#
add home page

rails g controller Welcome hello
add root 'welcome#hello' to config/routes.rb
vim app/views/welcome/hello.html.erb
add title per page
add header and footer
add colophon

rails g controller Colophon colophon
vim app/views/colophon/colophon.html.erb
vim app/views/layouts/_footer.html.erb