Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘James Melville <jlmelville@gmail.com>’
  
  Found the following (possibly) invalid URLs:
    URL: https://en.wikipedia.org/wiki/Qualitative_variation#Russel%E2%80%93Rao_coefficient
      From: inst/doc/metrics.html
      Status: 429
      Message: Too Many Requests
    URL: https://en.wikipedia.org/wiki/Qualitative_variation#Sokal%E2%80%93Sneath_coefficient
      From: inst/doc/metrics.html
      Status: 429
      Message: Too Many Requests
    URL: https://en.wikipedia.org/wiki/Taxicab_geometry
      From: inst/doc/metrics.html
      Status: 429
      Message: Too Many Requests

No changes to worse in reverse depends.