At the end of my listings I put something like "Please contact me if you have any questions or you can't see the pictures" which I think implies that I would like to be warned if I have an error in my listing. I have contacted people with success when I saw a big error in their listing but never just over spelling. It is more like when they say the item is
Coach and it is Chanel. I can't stand poor spelling but I think that some people would get defensive about it. So I would mind my own business unless you see something else that really needs correcting and then you can mention the spelling as an afterthought.