app:
  build: .
  volumes:
    - ./src:/app/src
    - ./test:/app/test
    - ./nlp100knock.cabal:/app/nlp100knock.cabal

app:
  build: .
  volumes:
    - ./src:/app/src
    - ./test:/app/test
    - ./stack.yaml:/app/stack.yaml
    - ./nlp100knock.cabal:/app/nlp100knock.cabal

Add stack.yaml into docker volumes
Add stack.yaml into docker volumes
