I have noticed, while looking at my page source, the characters
showing just after a
A quick Google search showed this:
https://en.wikipedia.org/wiki/Soft_hyphen
Basically, it's a - I think. I would recommend looking for a - on your web page. If you don't see one I wouldn't recommend bothering with it unless you wanna use jQuery and make a simple script that'll remove it.
EDIT
It seems you want to get rid of it. I'd recommend trying to move around your images and play with them a little until it goes away.