You can polish glass! Some glaziers will do it for you, but the real question is why are they scratched!? The rubber that sits against the glass as it goes up and down your door has gone hard and needs to be replaced! I think this is covered in one of the stickies! :beer
I had found the stickie that addresses the issue about the scratches and repaired ... was now looking at trying to polish the small scratches that had just started on the glass..
Thought somebody may have used something that i could use.