Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Dyfan Jones <dyfan.r.jones@gmail.com>’
  
  Found the following (possibly) invalid URLs:
    URL: http://docs.pythonboto.org/en/latest/ref/opsworks.html
      From: man/opsworks.Rd
      Status: 503
      Message: Service Unavailable

No changes to worse in reverse depends.