Added missing examples to list.

examples/index.html

@@ -221,6 +221,8 @@
 				"webgl_materials_texture_compressed",
 				"webgl_materials_texture_filters",
 				"webgl_materials_texture_manualmipmap",
+				"webgl_materials_texture_pvrtc",
+				"webgl_materials_texture_tga",
 				"webgl_materials_video",
 				"webgl_materials_wireframe",
 				"webgl_mirror",