message: docs(service-worker): fix alert closing tag
  This also allows correctly parsing other tags further below (such as
  the `@reviewed` tag at the end).
  PR Close
diff: @@ -239,7 +239,7 @@ This version hash is the "latest manifest hash" listed above.
  Both clients are on the latest version.
  Each client is listed by its ID from the `Clients` API in the browser.
  -</div
  +</div>
  #### Idle task queue
  