GitHub is down
see: <a href="https://news.ycombinator.com/item?id=20499070" rel="nofollow">https://news.ycombinator.com/item?id=20499070</a> and <a href="https://news.ycombinator.com/item?id=20498983" rel="nofollow">https://news.ycombinator.com/item?id=20498983</a>