Turning in create a simple JSON database assignment.

Turning in create a simple JSON database assignment.
Thank you for your review. Fixed in https://github.com/HIROSN/create-simple-json-database/commit/eeff195800d446172b8983719c4e685f8b7a53e0 (Travis: https://travis-ci.org/HIROSN/create-simple-json-database/builds/42511031).