Update the contents of the README docs for - [ ] [base](https://github.com/SciDAS/slurm-in-docker/blob/master/base/README.md) - [ ] [controller](https://github.com/SciDAS/slurm-in-docker/blob/master/controller/README.md) - [ ] [database](https://github.com/SciDAS/slurm-in-docker/blob/master/database/README.md) - [ ] [worker](https://github.com/SciDAS/slurm-in-docker/blob/master/worker/README.md)
