nikonyrh/pyspark repository overview

Docker contents: https://github.com/nikonyrh/docker-scripts/tree/master/spark211_py36⁠ Startup utility: https://github.com/nikonyrh/docker-scripts/blob/master/startSparkContainer.sh⁠

Note that the startup utility assumes "local" image names, run "docker tag nikonyrh/spark:xyz spark211_py36:latest" to fix it.