wrong volume mapping in docker-compose.yml

[radekwo]

Couldn't load configuration: Properties file /usr/share/graylog/data/config/graylog.conf doesn't exist!
change

• "${PWD}/config/graylog/graylog.conf:/usr/share/graylog/config/graylog.conf"
  to
• "${PWD}/config/graylog/graylog.conf:/usr/share/graylog/data/config/graylog.conf"