for non-standard things in the check directory

Maintainer: ‘Bao Sheng Loe (Aiden) <bsl28@cam.ac.uk>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Bao", "Sheng"),
                      family = "Loe",
                      role = c("aut", "cre", "cph"),
                      email = "bsl28@cam.ac.uk",
                      comment = "Aiden"),
               person(given = "Maria",
                      family = "Sanchez",
                      role = "ctb"))
as necessary.
Conversion of ‘NEWS.md’ failed:
Error parsing YAML metadata at "/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/mazeGen/NEWS.md" (line 5, column 1):
YAML parse exception at line 5, column 1,
while scanning an alias:
did not find expected alphabetic or numeric character
Found the following files/directories:
  ‘map_5.png’ ‘maze_5.html’
Maintainer: ‘Bao Sheng Loe (Aiden) <bsl28@cam.ac.uk>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = c("Bao", "Sheng"),
                      family = "Loe",
                      role = c("aut", "cre", "cph"),
                      email = "bsl28@cam.ac.uk",
                      comment = "Aiden"),
               person(given = "Maria",
                      family = "Sanchez",
                      role = "ctb"))
as necessary.
Conversion of ‘NEWS.md’ failed:
Error parsing YAML metadata at "/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/mazeGen/NEWS.md" (line 5, column 1):
YAML parse exception at line 5, column 1,
while scanning an alias:
did not find expected alphabetic or numeric character
Found the following files/directories:
  ‘map_5.png’ ‘maze_5.html’
Found the following files/directories:
  ‘map_5.png’ ‘maze_5.html’
Found the following files/directories:
  ‘map_5.png’ ‘maze_5.html’
Found the following files/directories:
  ‘map_5.png’ ‘maze_5.html’
Found the following files/directories:
  ‘map_5.png’ ‘maze_5.html’