Remove link to ChaiOne Gameplan (broken link)

README.md

@@ -69,7 +69,6 @@ Examples of Slate in the Wild
 * [Travis-CI's API docs](http://docs.travis-ci.com/api/)
 * [Mozilla's localForage docs](http://mozilla.github.io/localForage/)
 * [Mozilla Recroom](http://mozilla.github.io/recroom/)
-* [ChaiOne Gameplan API docs](http://chaione.github.io/gameplanb2b/#introduction)
 * [Drcaban's Build a Quine tutorial](http://drcabana.github.io/build-a-quine/#introduction)
 * [PricePlow API docs](https://www.priceplow.com/api/documentation)
 * [Emerging Threats API docs](http://apidocs.emergingthreats.net/)