We should add a new documentation section in the "Use" category: how to persist and share data with volumes:

• For developers: specifying persistent data at build with the VOLUME Dockerfile instruction
• specifying persistent data at runtime with 'run -v'
• mounting an directory from the host with 'run -v HOST:CONTAINER'
• mounting read-only with ":ro"
• sharing volumes between containers with "run -volumes-from"