Goodreads Book Giveaway Widget

Hello, I am preparing to have a book giveaway through Goodreads and would like to use the widget that they provide. The site states:Copy/paste the following HTML into your website. Note that this will not work on sites that do not allow JavaScript. I did not add the code to this post. Would I be able to add their widget to my website? If so, could you please explain how to add it? Thank you! Simple Catch Theme tytenishaosgood.com