setup

when user type data more than once, like here:

    Path:
        root: /Users/bwd/BTC-ETF-Tracker
        data: /Users/bwd/BTC-ETF-Tracker/data
        db:   /Users/bwd/BTC-ETF-Tracker/data_refactor/db

then ```DATA_PATH``` contains multiple paths, instead it should keep the one specified at ```data```
