Update docker documentation
Update docker documentation


Former-commit-id: 0dba4211c0283ef9d13f3b09dce271d27d688066 [formerly 0dba4211c0283ef9d13f3b09dce271d27d688066 [formerly 8b2af8e15a29667ba6b3c0afcc66dad17eb82f69]]
Former-commit-id: ab798bbb2191e01823bd31c6eaff5ec5975ccd60
Former-commit-id: c22664c8cc76cee96d7345a8a8416ea0fc6280bf
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine