zip vs tar.xz with one vs two readme files
Looking at [v3.0.2](https://github.com/ryanoasis/nerd-fonts/releases/tag/v3.0.2) `CascadiaCode.zip` vs `CascadiaCode.tar.xz`

* the zip has one `readme.md` file
* the tar.xz has a `readme.md` _and_ a `README.md` file

* `README.md`: `# Cascadia Code` information / docs
* `readme.md`: Short `#Nerd Fonts` note

_I assume this is likely an issue with other font packages too, but I only saw and checked on CascadiaCode._