Drop CSV files of real Kenyan home sales here, one row per home, using the columns in
../real_sales_template.csv (delete its two example rows first). Then run, from the project folder:

  PYTHONPATH=model python -m kenya_hpp.import_sales   # check the files
  PYTHONPATH=model python -m kenya_hpp.train --real    # retrain with them
  python client/build.py                               # refresh the web app

Sales recorded through POST /api/sales land in collected_via_api.csv in this folder.
