cta-dcache: add README.md to decribe the module

4 jobs for test001 in 21 minutes and 17 seconds (queued for 5 seconds)
Name Stage Failure
publish Publish
$ echo "$SFTP_COMMAND"
PUT build_rpm/RPM/RPMS/x86_64 OSM/\nls OSM
$ echo "$SFTP_COMMAND" | sftp -P 2022 -i ~/.ssh/id_rsa cta@it-fs5.desy.de -b-
Host key verification failed.
Couldn't read packet: Connection reset by peer

Cleaning up project directory and file based variables

ERROR: Job failed: command terminated with exit code 1