Modifying of Shopify "Email Cart from POS" Notification

Hi, we use shopify platform for online sale. There is an apllication called as Shopify POS. When we send cart to customers via email, they see a “complete your order” button. This button redirects customers to a checkout page, but we want customer to be redirected to cart page that is the step before the checkout. It should be done by modifying mail template. I uploaded mail screenshots below and sent the HTML code below.

<td class="button__cell"><a href="{{ invoice_url }}" class="button__text">Siparişi tamamla</a></td>