Paste the code to your Squarespace website’s HTML field.
Next, go to your Squarespace store editor and find the HTML field. It is most likely in the form of an HTML/Code widget or module which you can find on the Squarespace’s editor. Add it to your page, and paste the Event List Embed Code you’ve copied before to the HTML field.
Save and update, and that’s it, you should have Common Ninja’s Event List plugin on your Squarespace store.