Before running: npm install mysql and Inquirer
- Running the application will list all available items for sale.
- You will be prompted to enter the ID number of the item you wish purchase
- Next you will be prompted to enter the amount of the item you want to purchase
- You will then be provided the total cost of your purchase
- Then the stock quanity will be adjusted accordingly and you will be returned to the beginning of the application
- If you attempt to purchase more than is in stock, you will be alerted "Insufficient Supply!" and returned to the beginning of the applications