Update Three.js Game Development link

index.html

@@ -74,7 +74,7 @@
 					<h2>Resources</h2>
 					<ul>
 						<li><a href="https://threejs-journey.xyz/" target="_blank" rel="noopener">Three.js Journey</a></li>
-						<li><a href="https://simondev.teachable.com/p/games-three-js" target="_blank" rel="noopener">Three.js Game Development</a></li>
+						<li><a href="https://simondev.io/" target="_blank" rel="noopener">Three.js Game Development</a></li>
 						<li><a href="https://threejsresources.com/" target="_blank" rel="noopener">Three.js Resources</a></li>
 					</ul>