Feat request: Add keymap descriptions

[rafamadriz]

Giving a description to keymaps would integrate nicely with other plugins like for example which-key.nvim, other benefit is that you can know what exactly a keymap is for when using something like verbose.

With descriptions:

Without descriptions:

As a reference, this was added to kylechui/nvim-surround in this commit https://github.com/kylechui/nvim-surround/commit/306a92830ede75d7d3a48ba04c7e603b73c3f377

[numToStr]

Sure. This will be a nice addition. PR also welcome :)

[rafamadriz]

Of course, I'd love to do a PR. Can I get some guidance ? If I understand correctly, I need to work on these two place:

https://github.com/numToStr/Comment.nvim/blob/2e0572cc35ecc117c0ab6dc0aa3132b109d61047/lua/Comment/api.lua#L238-L293

https://github.com/numToStr/Comment.nvim/blob/ef3e6bfa41073a73c298ae90d2796f8ceda71c6a/after/plugin/Comment.lua

[numToStr]

Yes, these 2 places should work.