V4L/DVB: tm6000: README - add vbi

Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/tm6000/README

@@ -4,6 +4,7 @@ Todo:
 	  URB control transfers
 	- Properly add the locks at tm6000-video
 	- Add audio support
+	- Add vbi support
 	- Add IR support
 	- Do several cleanups
 	- I think that frame1/frame0 are inverted. This causes a funny effect at the image.