Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Martin R. Smith <martin.smith@durham.ac.uk>’
  
  Found the following (possibly) invalid URLs:
    URL: https://www.shadedrelief.com/hypso/hypso.html
      From: man/HoldridgeHypsometricCol.Rd
      Status: 406
      Message: Not Acceptable

No changes to worse in reverse depends.