Wrong indentation

[codcod]

Fix yamllint errors in config.yaml

yamllint config.yaml

config.yaml
  1:1       warning  missing document start "---"  (document-start)
  2:1       error    wrong indentation: expected at least 1  (indentation)
  5:3       error    wrong indentation: expected at least 3  (indentation)
  16:3      error    wrong indentation: expected at least 3  (indentation)
  25:81     error    line too long (82 > 80 characters)  (line-length)
  27:3      error    wrong indentation: expected at least 3  (indentation)
  38:3      error    wrong indentation: expected at least 3  (indentation)
  49:3      error    wrong indentation: expected at least 3  (indentation)
  60:3      error    wrong indentation: expected at least 3  (indentation)
  71:3      error    wrong indentation: expected at least 3  (indentation)