Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Søren Højsgaard <sorenh@math.aau.dk>’
  
  Found the following (possibly) invalid URLs:
    URL: https://www.biostathandbook.com/ancova.html
      From: man/crickets.Rd
      Status: 406
      Message: Not Acceptable

No changes to worse in reverse depends.