image-layers: remove dash from left side of badge
image-layers: remove dash from left side of badge

As discussed in #538

pine613/shields,pine613/shields,mahirk/shields,badges/shields,freezy-sk/shields,badges/shields,tomap/shields,mahirk/shields,freezy-sk/shields,malditogeek/shields,tomap/shields,badges/shields,malditogeek/shields