Move data to the top level of the repository.

First release!

• Add aapl.csv.
• Add alphabet.csv.
• Add cars.csv.
• Add citywages.csv.
• Add diamonds.csv.
• Add flare.csv.
• Add industries.csv.
• Add miserables.json.
• Add olympians.csv.
• Add penguins.csv.
• Add pizza.csv.
• Add weather.csv.