The https://github.com/hibernate/hibernate-ogm/blob/master/README.md file in Hibernate OGM repository points to incorrect links for Cassandra, CouchDB,EhCache and Redis.

On Searching for the following projects, i found the following links, but these are not updated anywhere.
https://github.com/DavideD/hibernate-ogm-redis
https://github.com/DavideD/hibernate-ogm-ehcache
https://github.com/DavideD/hibernate-ogm-couchdb
https://github.com/DavideD/hibernate-ogm-cassandra