Install requires Neovim nightly but might works on latest stable release. Always review the code before installing a configuration.
Make sure you delete or backup your old neovim configuration to somewhere safe before installing this one.
# required
mv ~/.config/nvim{,.bak}
# optional but recommended
mv ~/.local/share/nvim{,.bak}
mv ~/.local/state/nvim{,.bak}
mv ~/.cache/nvim{,.bak}
# required
Move-Item $env:LOCALAPPDATA\nvim $env:LOCALAPPDATA\nvim.bak
# optional but recommended
Move-Item $env:LOCALAPPDATA\nvim-data $env:LOCALAPPDATA\nvim-data.bak
git clone https://github.com/shivambegin/Neovim.git ~/.config/nvim
git clone https://github.com/shivambegin/Neovim.git $env:LOCALAPPDATA\nvim