app/views/admin/recovery_codes/_codes.html.erb
<h2>
Recovery codes
</h2>
<p>
Please save the recovery codes below in a safe place, ideally
using a secure password manager.<br>
Without them, you will lose access to your account if you lose your device.
</p>
<ul class="recovery-codes">
<% recovery_codes.each do |c| %>
<li><%= c %></li>
<% end %>
</ul>