app/views/application/_account_actions.html.erb
<section data-role="account_actions">
<% if signed_in? %>
<%= link_to t("sign_out.link"), session_path, method: :delete %>
<% else %>
<%= link_to t("sign_in.link"), new_session_path %>
<%= link_to t("sign_up.link"), sign_up_path %>
<% end %>
</section>