Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Arne Henningsen <arne.henningsen@gmail.com>’
  
  Found the following (possibly) invalid URLs:
    URL: https://www.arne-henningsen.name/
      From: inst/doc/selection.pdf
      Status: Error
      Message: Timeout was reached [www.arne-henningsen.name]:
        Connection timed out after 60000 milliseconds

No changes to worse in reverse depends.