Place the button displaying Add to Wishlist next to the other button on the webpage.

<html>
<body>
<h3>Dragons Love Tacos</h3>
<p>A book that will make you laugh so hard, salsa will come flying out of your nose.</p>
<button>Add to Cart</button>
<button>Add to Wishlist</button>
</body>
</html>]]>

Make sure to pick <button>, followed by Add to Wishlist, and finally </button>.