houdini/app/views/settings/_custom_thank_you_modal.html.erb

<%- # License: AGPL-3.0-or-later WITH WTO-AP-3.0-or-later
# Full license explanation at https://github.com/houdiniproject/houdini/blob/master/LICENSE -%>
<div class='modal' id='customThankYouModal'>
  <%= render 'common/modal_header', title: 'Edit donation thank-you note' %>
  <div class='modal-body'>
    <p class='pastelBox--yellow u-marginBottom--20 u-padding--10' >You can add a custom thank-you note that gets added to the top of all donation email receipts.</p>
      <form>
        <!--= on 'submit' update_custom_receipt -->
        <div class='editable  editable--email u-marginBottom--20' data-path='/nonprofits/<%= @nonprofit.id %>.json' data-key='nonprofit[thank_you_note]'>
          <%= raw @nonprofit.thank_you_note || "Thank you for your contribution!" %>
        </div>
        <%= render 'components/forms/submit_button', scope: 'receipt' %>
      </form>
    </div>  
</div>