app/views/devise/invitations/_admin_preview.html.haml
/ If this file is changed then you must change 'devise/mailer/_admin' all so.
%h1 Invitation Preview
%hr/
%h4 Become an Admin
%p Hello [contact name] [email],
%p
#{current_company.owner.name } has invited you to #{link_to 'EasyKeep', '#'}, to be an admin over the company
accounts for #{current_company.name}. You can accept this invitation through the link below.
%p= link_to 'Accept invitation', '#'
%p
If you don't want to accept the invitation, please ignore this email.
%br/
Your account won't be created until you access the link above and set your password.