go-graft: add changelog

Author: oluceps

pkgs/by-name/go/go-graft/package.nix

@@ -37,6 +37,7 @@ buildGoModule rec {
 
   meta = with lib; {
     description = "Command-line tool for one-click proxy in your research and development without installing v2ray or anything else";
+    changelog = "https://github.com/mzz2017/gg/releases/tag/${src.rev}";
     homepage = "https://github.com/mzz2017/gg";
     license = licenses.agpl3Only;
     maintainers = with maintainers; [