Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Tommy Jones <jones.thos.w@gmail.com>’
  
  Found the following (possibly) invalid URLs:
    URL: https://en.wikipedia.org/wiki/Zipf%27s_law
      From: inst/doc/a_start_here.html
      Status: 429
      Message: Too Many Requests

No changes to worse in reverse depends.