app/views/admin/school_onboardings/email/new.html.erb
<h1>Automatic school setup: <%= @school_onboarding.school_name %></h1>
<dl>
<dt>School name:</dt>
<dd><%= @school_onboarding.school_name %></dd>
<dt>Contact email:</dt>
<dd><%= @school_onboarding.contact_email %></dd>
</dl>
<%= button_to 'Send setup email', admin_school_onboarding_email_path(@school_onboarding), method: :post, class: 'btn btn-success'%>