API Update tutorial

[Azeem-Khan1]

1. In local broswer, add /api/players to the end of url (8086)
2. It should show all records in the database
3. To update from Postman, type in the url from the browser and add '/update'
4. Make sure the PUT method is selected
5. navigate body > raw > JSON
6. Type in {"uid": "<uidOfAccount>", "data": {"<keyToUpdate>": <newValue>}} (change things inside <> as needed.)
7. Click send
8. Reload the browser tab
9. Data should be updated and shown