This is highly a personal plugin.

install

import this

Install with plug.

Plug 'waylonwalker/mdformat.nvim'

init

Require it in your init.vim to use it.

lua require'mdformat'

Install TreeSitter grammer

:TSInstall markdown

" alternatively install all of them
:TSInstall all

Debug

make sure that you don't have any treesitter errors.

:checkhealth nvim-treesitter