Create user and review model in backend

[ByungHeeCha]

Wanted behavior will be in backend/README.md. I think we need to make backend as fast as possible for frontend.

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recommendation이 필요한 api/restaurant 를 제외한 나머지 모델을 지금 만드는 것이 좋다고 생각합니다. 그래야 프론트엔드를 만드는데 도움이 될것 같습니다.

[ByungHeeCha]

Should we make different apps for User, Restaurant, Review model, or combine to 1 app?

[ByungHeeCha]

Combining to 1 app could make coding easier, but it may be hard to divide task to other member because of conflict problem

[tho-kn]

Each model will be directly referencing each other as foreign key, I think it's impossible to divide them into different apps

[ByungHeeCha]

I think django can make relation between different apps. doesn't it?

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앱 사이를 연결할 수 있지 않나요?

[ByungHeeCha]

I think at least User and review table can be divided by differennt apps.

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최소한 User와 review 테이블은 다른 앱으로 구현할수 있을거 같아요.

[ByungHeeCha]

I tried it. I think @th-snu is right. I'll fix it

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실험해 보니까 @th-snu 가 맞는거 같아요. 고칠게요