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 `v2.1.0`.

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

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

removing `v1.1` and linking `v1.1` to `v1.1.7`.

removing `v1.0` and linking `v1.0` to `v1.0.1`.

removing `v0.2` and linking `v0.2` to `v0.2.7`.

removing `v0.1` and linking `v0.1` to `v0.1.3`.

removing `v2` and linking `v2` to `v2.1.0`.