Update README.md

[utkarsh006]

What

• The old README has large texts that users and contributors may find difficult to read. Also, text formatting is absent.

Important information

• Device: [e.g. Pixel6]
• OS: [e.g. Android 10]
• App Version [e.g. 22] - you can see that either at the bottom of the app settings (left menu) or https://nerdschalk.com/how-to-find-version-number-of-an-app-installed-on-your-device/

Project

Open Food Facts