Leave it be, you'll probably make it worse and more noticeable than it is. Besides, I see no scratches except for a scuff.
If you're not prepared to re-polish all visible surfaces then whatever you do will just attract even more attention.
As for how to perform the repair I would start with some YouTube videos and gauge which method you would feel comfortable carrying out. I have zero clue what your skill nor willingness level is so I have no specific recommendation for technique.