Improve README.md

[tarun-bathwal]

Make the readme more descriptive.

[prondubuisi]

Hello, I would love to work on this issue, what additional descriptions do you want added to the readme file? Also what version of PHP do i need to run this? do i need to import any SQL files?

[tarun-bathwal]

Readme should be updated to reflect the current working and the possible upgrades that could be made