Fixed Dead Link
Fixed Dead Link

Fixed Dead Link for test cases

Previous Link: https://github.com/docker-java/docker-java/tree/master/src/test/java/com/github/dockerjava/core/command
Current Link: https://github.com/docker-java/docker-java/tree/master/docker-java/src/test/java/com/github/dockerjava/core/command
tejksat/docker-java,tejksat/docker-java,docker-java/docker-java,docker-java/docker-java