A popular tourist hotspot in Kent has apologised for creating “unrealistic expectations” of a fireworks event after promoting it with a heavily edited image of an eye-catching display. Folkestone Harbour Arm used the photo to advertise this Saturday’s free illuminations, which are being put on by local craft beer outlet Brewing Brothers. Posted on Facebook, the picture showed fireworks filling the night sky in a spectacular explosion of colour above the seafront attraction. But harbour arm bosses have now been forced to admit the image is not a true reflection of what is in store for visitors …