Gillingham manager Mark Bonner isn’t finished in the transfer-market yet. The signing of Euan Williams on Wednesday was Gillingham’s seventh since the end of last season but Bonner believes they need more. EFL clubs have until Friday, August 30 (11pm) to trade contracted players and the Gills still need more, says Bonner. He said: “We have got a long way left in the window and there is still plenty of time to do that, let’s see. “The window being open in the first month (of the season) means ‘see how you go, do you feel you need to add somewhere?’ “Obviously, if injuries occur in that first mo…