The [only supported variables/placeholders](https://docs.gitlab.com/ee/user/project/badges.html#placeholders ) for badges are: `%{project_path}, %{project_id}, %{default_branch}, %{commit_sha}` We would like to have project_path_slug as an additional variable, where forward slashes are replaced by `%2F` (some-group%2Fsome-project) - this would be helpful for integrating a 3rd party badge.