Build the app

• create partial "views/devise/menu/_login_items.html.erb" as described in https://github.com/plataformatec/devise/wiki/How-To:-Add-sign_in,-sign_out,-and-sign_up-links-to-your-layout-template

• add to views/layout/application.html.erb <%= render :partial => 'devise/menu/login_items' %>