docs: fix typo (#22021)

docs/manual/en/introduction/Creating-a-scene.html

@@ -111,7 +111,7 @@
 		cube.rotation.y += 0.01;
 		</code>
 
-		<p>This will be run every frame (normally 60 times per second), and give the cube a nice rotation animation. Basically, anything you want to move or change while the app is running has to go through the animate loop. You can of course call other functions from there, so that you don't end up with a <strong>animate</strong> function that's hundreds of lines.</p>
+		<p>This will be run every frame (normally 60 times per second), and give the cube a nice rotation animation. Basically, anything you want to move or change while the app is running has to go through the animate loop. You can of course call other functions from there, so that you don't end up with an <strong>animate</strong> function that's hundreds of lines.</p>
 
 		<h2>The result</h2>
 		<p>Congratulations! You have now completed your first three.js application. It's simple, but you have to start somewhere.</p>