export function rehypeUrls(node) {
  if (
    node.type === 'element' &&
    node.properties?.href &&
    /.md/.test(node.properties.href) &&
    !/^(https?:\/\/)/.test(node.properties.href)
  ) {
    let href = node.properties.href;
    node.properties.href = href.replace(/([^\.\/\\]+)\.(md|markdown)/gi, '$1.html');
  }
}
