usage:
$ docker run --volume $HOME/.bitcoin:/home/user/.bitcoin:ro \
--volume $PWD/db:/home/user/db \
--env ELECTRS_DB_DIR=/home/user/db \
--env ELECTRS_ELECTRUM_RPC_ADDR=0.0.0.0:50001 \
--env ELECTRS_MONITORING_ADDR=0.0.0.0:4224 \
--rm -i -t lnliz/electrs:v0.11.1