a#github-ribbon(href="https://github.com/jeremija/peer-calls")
  img(src="res/fork.png" alt="Fork me on GitHub")

a#github-ribbon(href="https://github.com/jeremija/peer-calls" target="_blank")
  img(src="res/fork.png" alt="Fork me on GitHub")

Add target _blank for fork me ribbon
Add target _blank for fork me ribbon
