Hello Phill,
you can put this code into the CODE-SECTION of your choosen site-page.
Before you can do it, make sure that you have activated “Dev-Mode”.
If “dev-Mode” is OFF, then you can’t paste any codings into your project.
Once you have activated the “Dev-Mode” (Developer-Mode), then you will see the CODE-Section on the lower End of your screen.
Good luck and happy coding!