Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Shihao Yang <shihao.yang@isye.gatech.edu>’
  
  Found the following (possibly) invalid URLs:
    URL: https://www.cdc.gov/flu/weekly/weeklyarchives2012-2013/data/senAllregt50.htm
      From: man/load_data.Rd
      Status: 404
      Message: Not Found
    URL: https://www.cdc.gov/flu/weekly/weeklyarchives2015-2016/data/senAllregt07.html
      From: man/load_data.Rd
      Status: 404
      Message: Not Found