app/views/devise/mailer/reset_password_instructions.html.erb
<p>Hello <%= @resource %>!</p>
<p>Someone has requested a link to change your password, and you can do this through the link below.</p>
<p><%= link_to ' Change my password', edit_password_url(@resource, :reset_password_token => @token, :district_abbrev => @resource.district.abbrev) %></p>
<p>If you didn't request this, please ignore this email.</p>
<p>Your password won't change until you access the link above and create a new one.</p>
Thank you.