retrospring/app/views/devise/mailer/confirmation_instructions.html.haml

%p
  Welcome to
  = succeed ',' do
    = APP_CONFIG['site_name']
  = succeed '!' do
    = @resource.screen_name
%p You can confirm your account email through the link below:
%p= link_to 'Confirm my account', confirmation_url(@resource, confirmation_token: @token, protocol: (APP_CONFIG['https'] ? :https : :http))