func moreTapped() {
        let url = NSURL(string: "itms-apps://itunes.com/developer/quantum-productions/id979315877")
        if #available(iOS 10.0, *) {
            UIApplication.shared.open(url! as URL, options: [:], completionHandler: {(success: Bool) in

            })
        } else {
            UIApplication.shared.openURL(url! as URL)
        }

    }