Markup fail.

README.md

@@ -5,7 +5,7 @@ three.js
 
 The aim of this project is to create a lightweight 3D engine with a very low level of abstraction (for dummies). The engine can render using <canvas>, <svg> and WebGL.
 
-([API Reference](https://github.com/mrdoob/three.js/wiki/API-Reference-(r33)))
+([API Reference](https://github.com/mrdoob/three.js/wiki/API-Reference---r33))
 
 Be aware that the API may change from revision to revision breaking backwards compatibility.