Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Joris Chau <joris.chau@openanalytics.eu>’
  
  Found the following (possibly) invalid URLs:
    URL: https://www.gnu.org/software/gsl/doc/html/nls.html
      From: man/gsl_nls.Rd
            man/gsl_nls_large.Rd
      Status: Error
      Message: Timeout was reached [www.gnu.org]:
        Connection timed out after 60002 milliseconds
    URL: https://www.gnu.org/software/gsl/doc/html/nls.html#tunable-parameters
      From: man/gsl_nls_control.Rd
      Status: Error
      Message: Timeout was reached [www.gnu.org]:
        Connection timed out after 60000 milliseconds

No changes to worse in reverse depends.