message: Delete redundant `async`
diff: @@ -7,7 +7,7 @@ export default function () {
  return (site) => {
  site.process([".html"], processor);
  - async function processor(page) {
  + function processor(page) {
  const document = parser.parseFromString(page.content, "text/html");
  const from = site.url(page.url);
  