app/views/gringotts/settings/setup.html.erb
<div id="gringotts" class="setup">
<div class="wrapper">
<div class="header">
<h1>
Phone Verification When Signing In
</h1>
<p>
Phone Verification makes your account extra secure. When you sign in, we’ll send a message to your mobile phone to make sure it’s really you. Ready to get started?
</p>
</div>
<div class="content">
<div class="step">
<h2>
Add your mobile phone
<span class="step-number">1</span>
</h2>
</div>
<%= form_for @settings, url: {action: "update"}, method: :post do |f| %>
<%= f.text_field :phone_number %>
<%= f.submit "Save and continue" %>
or
<%= link_to "Cancel setup", main_app.root_url %>
<% end %>
<%- if @settings.errors.any? %>
<div class="error">
<%- @settings.errors.full_messages.each do |msg| %>
<%= msg %>
<% end %>
</div>
<% end %>
</div><!-- /content -->
</div><!-- /wrapper -->
</div><!-- /gringotts setup -->