Jupyterlab container #15

Solves #15 (closed)

This is just to store the run command to be used later by the launch endpoint. It also sets up the internal docker uid:gid to be 1000:1000, that's the Nomad default.

docker/jupyterlab/README.md

+## JupyterLab
+
+We are using the [jupyter/datascience-notebook](https://hub.docker.com/r/jupyter/datascience-notebook) image from DockerHub with some added arguments. This folder stores the docker run command we can use in the launch endpoint.
+There are also Python named string parameters to make the cmd a bit more dynamic.