The webpage link in the About section "http://stephenc.github.com/jcip-annotations/" return a 404 page. I would suggest to change the URL to https://stephenc.github.io/jcip-annotations/ --- 
The webpage link in the About section "http://stephenc.github.com/jcip-annotations/" return a 404 page. I would suggest to change the URL to https://stephenc.github.io/jcip-annotations/