tap/app/views/devise/registrations/edit.html.erb

<h2>Edit <%= resource_name.to_s.humanize %></h2>
<%= render 'flash' %>

<%= f_form_for(resource, :as => resource_name, :url => registration_path(resource_name), :html => { :method => :put }) do |f| %>
  <%= f.error_messages %>

  <%= f.password_field :password %>
  <%= f.password_field :password_confirmation %>

  <%= f.password_field :current_password %>

  <%= f.file_field :avatar %>

  <%= f.submit "Update" %>
<% end %>