incorrect name for fedora package in README.md

[Kn4ughty]

The name for the fedora package in the readme is incorrect, at least on Asahi Linux.

$ sudo dnf install Lightly
No match for argument: Lightly
  * Maybe you meant: lightly
Error: Unable to find a match: Lightly

[theaino]

The package is also kind of broken.

[TKK13909]

Hey, this repo has been abandoned. https://github.com/Bali10050/Lightly is being actively maintained so you should probably give it a try.

[Kn4ughty]

Yeah i think you're right, however this issue isn't applicable to the fork since it doesn't have an official fedora package anyway. Thanks for the heads up anyway

[TKK13909]

It does have a copr though. https://copr.fedorainfracloud.org/coprs/deltacopy/lightly-qt6/monitor/