Chore: Clean up.

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

@@ -133,7 +133,7 @@
 				<script src="js/three.js"></script>
 				<script>
 					var scene = new THREE.Scene();
-					var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
+					var camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
 
 					var renderer = new THREE.WebGLRenderer();
 					renderer.setSize( window.innerWidth, window.innerHeight );

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

@@ -134,7 +134,7 @@
 				<script src="js/three.js"></script>
 				<script>
 					var scene = new THREE.Scene();
-					var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
+					var camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
 
 					var renderer = new THREE.WebGLRenderer();
 					renderer.setSize( window.innerWidth, window.innerHeight );