Add documentation on what the bundle does

[crtl]

From the readme it is not clear what the bundle does and how it is done.
It only shows installation and configuration instructions.

[Yozhef]

Thank you for your opinion - we are currently building a new Redmi) We will update you soon.

[victorvliederen]

Thank you for your opinion - we are currently building a new Redmi) We will update you soon.

Do you need help?

[Yozhef]

Hello everyone, it's a shame to say this, but we need your help and recommendations)
Therefore, we would be grateful for your view on the documentation.