Adding books to "Italy"

[Gaia]

Hi There :)
I saw a section of Goodreads titled "Italy" with books taking place in Italy. https://www.goodreads.com/places/12-i...
It would be a perfect fit for my books (The one above and the second one in the same series).
How do I go about adding them there?

Thank you so much,

Gaia

[Arenda]

Added Italy to both books.

[Gaia]

Thank you much <3