Update How-to-use-WebGL2.html

docs/manual/en/introduction/How-to-use-WebGL2.html

@@ -100,7 +100,7 @@ var material = new THREE.ShaderMaterial( {
 		Have a look at one of the official examples in order to see WebGL 2 features in action.<br /><br />
 
 		[example:webgl2_materials_texture3d WebGL2 / materials / texture3d]<br />
-		[example:webgl2_materials_texture3d_volume WebGL2 / materials / texture3d / volume]<br />
+		[example:webgl2_materials_texture2darray WebGL2 / materials / texture2darray]<br />
 		[example:webgl2_multisampled_renderbuffers WebGL2 / multisampled renderbuffers]
 	</p>