First install the lastest stable version of neovim https://github.com/neovim/neovim/releases/tag/stable.
Create the following folder: ~/.config/nvim
and clone this repository.
Clone Packer, the plugin manager:
git clone https://github.com/wbthomason/packer.nvim\
~/.local/share/nvim/site/pack/packer/opt/packer.nvim
Install a nerd font (to get the icons) stored in the archive https://www.nerdfonts.com/font-downloads and select it in your terminal settings.