Github user felixcheung commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/365#issuecomment-150986631 Spark does it by referring to copies under a license directory. Should that be done here? https://github.com/apache/spark/tree/master/licenses
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---