Merge branch 'issue/53' into 'master'

Issue #53: Add docker-compose.yml with read-only setup

See merge request !50
3 jobs for master in 57 seconds (queued for 8 seconds)
Name Stage Failure
failed
deploy Deploy There is an unknown failure, please try again
$ PKG_VERSION=$(cat package.json | grep \"version\" | cut -f2 -d':'| sed -e 's/"\|,//g' | tr -d ' ')
$ docker push marula.c3sl.ufpr.br:5000/c3sl/blendb:${PKG_VERSION} .
"docker push" requires exactly 1 argument.
See 'docker push --help'.

Usage: docker push [OPTIONS] NAME[:TAG]

Push an image or a repository to a registry
ERROR: Job failed: exit status 1