add docker compose down for core pkg

Author: Marketen

.dappnode_profile

@@ -29,6 +29,8 @@ alias dappnode_status='docker compose $DNCORE_YMLS ps'
 # Stop docker core containers
 alias dappnode_stop='docker compose $DNCORE_YMLS stop && docker stop $(docker container ls -a -q -f name=DAppNode*)'
 # Start docker core containers
+alias dappnode_down='docker compose $DNCORE_YMLS down'
+# Remove docker core containers. This does not remove named volumes
 alias dappnode_start='docker compose $DNCORE_YMLS up -d && docker start $(docker container ls -a -q -f name=DAppNode*)'
 # Return open-vpn credentials from a specific user. e.g: dappnode_get dappnode_admin
 alias dappnode_openvpn_get='docker exec -i DAppNodeCore-vpn.dnp.dappnode.eth vpncli get'