feat: Add support for specify terraform-docs config file (antonbabenko#244)

Author: MaxymVlasov

terraform_docs.sh

@@ -4,6 +4,8 @@ set -eo pipefail
 main() {
  initialize_
  parse_cmdline_ "$@"
+ # Support for setting relative PATH to .terraform-docs.yml config.
+ ARGS=${ARGS/--config=/--config=$(pwd)\/}
  terraform_docs_ "${ARGS[*]}" "${FILES[@]}"
 }