Update docker-compose.yml to fix problem with volumes, configuration directory, and aquis.yaml file

[bhugh]

Volumes in docker should be directory rather than a specific directory/filename (as it is in the current version: /etc/crowdsec/aquis.yaml rather than simply /etc/crowdsec).

After the change, the compose.yml file seems to work and all config files are in place in ./crowdsec (local) and /etc/crowdsec (within container)