Changed “Getting started” link. See #4214.

index.html

@@ -101,7 +101,7 @@
 
 			<a href="http://github.com/mrdoob/three.js/zipball/master">download</a><br /><br />
 
-			<a href="http://www.aerotwist.com/tutorials/getting-started-with-three-js/">getting started</a><br />
+			<a href="docs/index.html#Manual/Introduction/Creating_a_scene">getting started</a><br />
 			<a href="docs/">documentation</a><br />
 			<a href="https://plus.google.com/104300307601542851567" rel="publisher">google+</a><br />
 			<a href="http://webchat.freenode.net/?channels=three.js">chat</a><br />