Added SSAO example to examples list.

examples/index.html

@@ -335,6 +335,7 @@
 				"webgl_postprocessing_godrays",
 				"webgl_postprocessing_crossfade",
 				"webgl_postprocessing_glitch",
+				"webgl_postprocessing_ssao",
 				"webgl_rtt",
 				"webgl_sandbox",
 				"webgl_shader",