glow
Markdown viewer
Use it to discover markdown files, read documentation directly on the command line. Glow will find local markdown files in subdirectories or a local Git repository.

More info at glow
Install:
winget install charmbracelet.glow
Just type glow in the terminal and ? to get help.
A plugin for yazi can be found here
Install it with
ya pack -a Reledia/glow
and add this to yazi.toml:
[plugin]
prepend_previewers = [
{ name = "*.md", run = "glow" },
]