Renamed Play to Tools.

index.html

@@ -51,7 +51,7 @@
 						<li><a href="https://chat.openai.com/g/g-jGjqAMvED-three-js-mentor">gpt</a></li>
 					</ul>
 
-					<h2>Play</h2>
+					<h2>Tools</h2>
 					<ul>
 						<li><a href="editor/">editor</a></li>
 						<li><a href="playground/">nodes</a></li>