for non-standard things in the check directory

Maintainer: ‘Jake Anderson <ajakef@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Jake",
                    family = "Anderson",
                    role = c("aut", "cre"),
                    email = "ajakef@gmail.com")
as necessary.
Found the following files/directories:
  ‘c.txt’ ‘rho.txt’ ‘sta.txt’ ‘topo.txt’
Maintainer: ‘Jake Anderson <ajakef@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Jake",
                    family = "Anderson",
                    role = c("aut", "cre"),
                    email = "ajakef@gmail.com")
as necessary.
Found the following files/directories:
  ‘c.txt’ ‘rho.txt’ ‘sta.txt’ ‘topo.txt’
Found the following files/directories:
  ‘c.txt’ ‘rho.txt’ ‘sta.txt’ ‘topo.txt’
Found the following files/directories:
  ‘c.txt’ ‘rho.txt’ ‘sta.txt’ ‘topo.txt’
Found the following files/directories:
  ‘c.txt’ ‘rho.txt’ ‘sta.txt’ ‘topo.txt’
Found the following files/directories:
  ‘c.txt’ ‘rho.txt’ ‘sta.txt’ ‘topo.txt’