message: Add prerequisites for Arch Linux
diff: @@ -61,6 +61,15 @@ missing, please open an issue.
  apt-get install cmake libfreetype6-dev libfontconfig1-dev xclip
  ```
  +##### Arch Linux
  +
  +On Arch Linux, you need a few extra libraries to build Alacritty. Here's a
  +`pacman` command that should install all of them. If something is still found
  +to be missing, please open an issue.
  +```sh
  +pacman -S cmake freetype2 fontconfig xclip
  +```
  +
  ##### Other
  If you build Alacritty on another Linux distribution, we would love some help
  