message: Adds Flathub install section.
diff: @@ -104,6 +104,23 @@ cmake --build build/
  cmake --build build/ --target install
  ```
  +### Installing via Flatpak
  +
  +#### Prerequisites
  +
  +- Make sure you have flatpak installed in your system ([here is a tutorial on how to install it](https://flatpak.org/getting.html)), and make sure that the version is >= 0.10 (check it using this command: `flatpak --version`)
  +- Add the [flathub](https://flathub.org) repository using the following command: `flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo`.
  +- Proceed with one of the following options:
  + - [Install from Flathub](#install-from-flathub)
  + - [Install from GitHub release](https://github.com/contour-terminal/contour/releases)
  +
  +#### Install from Flathub
  +
  +Click the following button install Contour from the Flathub store.
  +
  +[![Get it on Flathub](https://raw.githubusercontent.com/flatpak-design-team/flathub-mockups/master/assets/download-button/download.svg?sanitize=true)](https://flathub.org/apps/details/org.contourterminal.Contour)
  +
  +
  # References
  * [VT510](https://vt100.net/docs/vt510-rm/): VT510 Manual, see Chapter 5.
  