Fixing unresolved dependency

The url to repository is wrong, the correct is joscha.github.io. I am using play-authenticate/play-easymail first time, and get "sbt.ResolveException: unresolved dependency: com.typesafe#play-plugins-mailer_2.11;2.3.0: not found" and others unresolved dependencies.

When change url from joscha.github.com to joscha.github.io fix the problem.