Let's suppose we have a storefront. Included in this repo are files containing our transaction history for the last month (./data/transactions.json) and our inventory and user lists (./data/data.json). Our goal is to run some analytics on those.

1. Write classes to get the included tests (./tests.rb) passing
2. Feel free to write more tests as you like to add more functionality to your classes
3. Use those classes to answer the following questions (and update this README)

• The user that made the most orders was Miss Maxwell Gaylord
• We sold 31 Ergonomic Rubber Lamps
• We sold 198 items from the Tools category
• Our total revenue was 65696.65
• Harder: the highest grossing category was Books

If you're curious, you can see the script used to generate our dummy data in ./generators