message: Use rel="noopener" on backer links
diff: @@ -66,7 +66,7 @@ const Backer = ({
  className="backer-item"
  title={`$${totalDonations.value} by ${name || slug}`}
  target="_blank"
  - rel="nofollow"
  + rel="nofollow noopener"
  href={website || `https://opencollective.com/${slug}`}
  >
  {
  