Added skinning blending example to list.

examples/index.html

@@ -103,6 +103,7 @@
 		var files = {
 			"webgl": [
 				"webgl_animation_cloth",
+				"webgl_animation_skinning_blending",
 				"webgl_animation_skinning_morph",
 				"webgl_buffergeometry",
 				"webgl_buffergeometry_custom_attributes_particles",