Dead implies it was once a valid URL, but url is: https://github.com/benedekrozemberczki/karateclub/blob/master/link_here https://github.com/benedekrozemberczk

Dead implies it was once a valid URL, but url is: https://github.com/benedekrozemberczki/karateclub/blob/master/link_here https://github.com/benedekrozemberczki/karateclub/blob/maste... the "link_here" text leads me to believe this is placeholder text in a fake URL that was intended to be replaced by a real one.