This is what that code you sent makes happen. It kind of embeds the store right into a page on your site. This kind of feels like a site within a site. It might confuse people. I think just adding a button that links to the store is your better option.
Union Martial Arts
1501-B Waxhaw Indian Trail Road
Indian Trail, NC 28079
Call or text any time, 7 days a week. (704) 839-0101
Monday – Thursday
9:00am – 8:30pm
Friday
9:00am – 6:00pm
Saturday
8:30am – 1:30pm
Sunday
Closed