diff --git a/README.md b/README.md
index 3c3c7cd..05ba4af 100644
--- a/README.md
+++ b/README.md
@@ -1,29 +1,29 @@
-## Overview ##
-
-This is a port of _Box2DFlash_ 2.1a to JavaScript. [We developed](http://hecht-software.de/projekte/forschung/) an ActionScript 3 -to- JavaScript compiler to generate the code.
-
-There already exists a port to JavaScript called _Box2dJs_, but it's not up-to-date and you have to import a big amount of JavaScript files in every project, whereas my version is stored in a single file.
-
-The _Box2D_ physics engine was developed by Erin Catto (visit http://www.gphysics.com for further information)
-
-## Live Demo ##
-
-
-
-
-
-## Usage ##
-
-You can read the documentation for _Box2dFlash_, since nearly everything is organized the same way.
-http://www.box2dflash.org/docs/2.1a/reference/
-
-The _b2DebugDraw_ takes a canvas-context instead of a Sprite:
-```
+## Overview ##
+
+This is a port of _Box2DFlash_ 2.1a to JavaScript. [We developed](http://hecht-software.de/projekte/forschung/) an ActionScript 3 -to- JavaScript compiler to generate the code.
+
+There already exists a port to JavaScript called _Box2dJs_, but it's not up-to-date and you have to import a big amount of JavaScript files in every project, whereas my version is stored in a single file.
+
+The _Box2D_ physics engine was developed by [Erin Catto](https://github.com/erincatto).
+
+## Live Demo ##
+
+
+
+
+
+## Usage ##
+
+You can read the documentation for _Box2dFlash_, since nearly everything is organized the same way.
+http://www.box2dflash.org/docs/2.1a/reference/
+
+The _b2DebugDraw_ takes a canvas-context instead of a Sprite:
+```
var debugDraw = new Box2D.Dynamics.b2DebugDraw;
debugDraw.SetSprite(document.GetElementsByTagName("canvas")[0].getContext("2d"));
-```
-
-## Graphics ##
-
-Please notice that Box2dWeb is a physics engine. The graphics in the demo are generated by the b2DebugDraw-class, which is only available for debugging purposes.
-If you want to apply the computed coordinates to real graphics you should use a graphics library such as [IvanK](http://lib.ivank.net/) developed by Ivan Kuckir. The website of _IvanK_ even contains a Box2dWeb example: http://lib.ivank.net/index.php?p=demos&d=box2D
\ No newline at end of file
+```
+
+## Graphics ##
+
+Please notice that Box2dWeb is a physics engine. The graphics in the demo are generated by the b2DebugDraw-class, which is only available for debugging purposes.
+If you want to apply the computed coordinates to real graphics you should use a graphics library such as [IvanK](http://lib.ivank.net/) developed by Ivan Kuckir. The website of _IvanK_ even contains a Box2dWeb example: http://lib.ivank.net/index.php?p=demos&d=box2D