Unable to determine the repository root URL for the navbar link. This can happen when a string is passed to the `repo` keyword of `makedocs`. To remove this warning, either pass a Remotes.Remote object to `repo` to completely specify the remote repository, or explicitly set the remote URL by setting `repolink` via `makedocs(format = HTML(repolink = "..."), ...)`.

removing `stable` and linking `stable` to `v2.5.1`.

removing `v2.5` and linking `v2.5` to `v2.5.1`.

removing `v2.4` and linking `v2.4` to `v2.4.0`.

removing `v2.3` and linking `v2.3` to `v2.3.1`.

removing `v2.2` and linking `v2.2` to `v2.2.0`.

removing `v2.1` and linking `v2.1` to `v2.1.1`.

removing `v2.0` and linking `v2.0` to `v2.0.3`.

removing `v1.2` and linking `v1.2` to `v1.2.0`.