Since `dotenv` in the backend now loads configuration from a file
relative to the current file, we don't have to duplicate the neo4j
configuration settings here.
cc @mattwr18
I would suggest that each subfolder like `/backend/`, `/webapp/`,
`/deployment/` and so on should have a file README.md. Thus, not only
gitbook will pick it up but also Github itself. Github is looking for a
file called README.md when iterating through subfolders.