README seems broken

[omid]

Currently, README seems broken.
Like, the setup commands don't work, it's not visible how we can set up DB locally.
Also I think inmemory doesn't exist anymore.

[fmeringdal]

README (and probably some of the examples as well) is very likely broken as I have not updated it for a while.
DB is set up and configured in the docker-compose file.
inmemory no longer exists so I will remove that part of the readme.