def download_dataset_readme_file(self) -> str:
        readme_url = hf_dataset_url(self.name, config.REPOCARD_FILENAME, revision=self.commit_hash)
        # Download the dataset infos file if available
        download_config = self.download_config.copy()
        if download_config.download_desc is None:
            download_config.download_desc = "Downloading readme"
        try:
            return cached_path(
                readme_url,
                download_config=download_config,
            )
        except (FileNotFoundError, ConnectionError):
            return None