app/views/admin/school_onboardings/email/edit.html.erb
<h1>Change email address for <%= @school_onboarding.school_name %></h1>
<%= simple_form_for([:admin, @school_onboarding], url: admin_school_onboarding_email_path(@school_onboarding)) do |f| %>
<%= f.input :contact_email %>
<%= f.input :notes %>
<div class="actions">
<%= f.submit 'Save', class: 'btn btn-primary' %>
</div>
<% end %>