Edit Shop Page

Nice plugin. I am looking to edit the shop page so that I can implement the the html5 attribute <figure> I have successfully achieved this on the widget however I have been unable to find the location of the relevant files that generate the html. The widget with functioning <figure> can be found on this page https://slimdesign.co.uk/seahamwaves/ and the normal shop that I would like to edit can be found here: https://slimdesign.co.uk/seahamwaves/holder-shop/

I would appreciate if anyone can point me in the direction of where the HTML is generated.

Thanks

Mark

https://www.ads-software.com/extend/plugins/woocommerce/