message: Add Instructions for installing on FreeBSD
  Readd instructions for how to install pre-compiled alacritty packages on
  FreeBSD.  This was accidentaly removed in
diff: @@ -74,6 +74,11 @@ xbps-install alacritty
  emerge x11-terms/alacritty
  ```
  +### FreeBSD
  +```sh
  +pkg install alacritty
  +```
  +
  ### Windows
  Prebuilt binaries can be downloaded from the artifacts section of [appveyor](https://ci.appveyor.com/project/jwilm/alacritty).
  