message: fix(docs-infra): fix the retry-on-error example
  Previously, the `retry` example did not work as intended. The `retry`
  operator was called before the exception occured, thus not retrying the
  `ajax` request.
  This commit moves the `retry` operator into the correct order to ensure
  that the failed request is retried.
  PR Close
diff: @@ -8,13 +8,13 @@ import { ajax } from 'rxjs/ajax';
  import { map, retry, catchError } from 'rxjs/operators';
  const apiData = ajax('/api/data').pipe(
  - retry(3), // Retry up to 3 times before failing
  map(res => {
  if (!res.response) {
  throw new Error('Value expected!');
  }
  return res.response;
  }),
  + retry(3), // Retry up to 3 times before failing
  catchError(err => of([]))
  );
  