Neovim basic installation on Ubuntu Linux

Neovim installation steps (partly taken from here):

sudo apt-get install software-properties-common
sudo add-apt-repository [-E] ppa:neovim-ppa/unstable # -E flag if you are behind a proxy
sudo apt-get update
sudo apt-get install neovim

Open your terminal and run Neovim typing nvim

Continue with configuring Neovim.