Hello @Mrcosby4u thanks for your question. I'm going to assume your talking about Afterpay's direct website (and not setting up using Afterpay for your Square POS or terminal payments). I'd go to:
https://www.afterpay.com/en-US/for-retailers
I think you need to register or setup your shop directly with Afterpay to have a mention on their own site. I hope this helps answer your question.
