kickstart.nvim [1] is the best way to get started if you want to understand how things are configured rather than using someone else's config.

It's a single file and you can pretty easily use it as a starting point for your own config.

And it comes with the which-key.nvim [2] plugin that helps you learn vim motions.

[1]: https://github.com/nvim-lua/kickstart.nvim

[2]: https://github.com/folke/which-key.nvim