Hi #huehairsalonsf, I don’t know that there is a great way to add a button to the bottom of the page as you’ve got it.
You’re using a Grid Page template to display child pages, and with those, any content on the parent page itself will always go above the child pages.
But, if you’d like, you could set up your services using a new page and a Columns block. Then you could put the button underneath that. Once it’s set up the way you like it, you can swap it out for the Services page in your site’s customizer.