The link structure you provided is a specific type of designed to let users add new software repositories (repos) to their jailbroken devices with a single tap. Breaking Down the Link Components
If you are on modern, rootless jailbreaks (using Sileo or Zebra instead of Cydia), make sure your package manager converts standard rootful repositories. The iOSGods repo fully supports modern rootless architectures when using iGameGod. iOSGods Repo - Jailbreak Tweaks & iGameGod Cydia URL scheme The link structure you provided