remove materials for readme

proceduralTexturesLibrary/readme.md

@@ -1,10 +1,4 @@
-# Materials library
-
-To get a detailled tutorial, please read the [documentation](http://doc.babylonjs.com/tutorials/How_to_create_a_material_for_materialsLibrary)
-
-For every material, you can find a detailled documentation [here](http://doc.babylonjs.com/extensions) under **materials library** tag.
-
-## Using a procedural texture from the library
+## Using a procedural texture from the library
 
 You can find multiple procedural textures that just works with Babylon.js in *dist* folder. To use then, you only need to reference the associated .js file and use the new provided texture: