ANNOUNCE: garcon 4.20.0 released

[Gaël Bonithon]

garcon 4.20.0 is now available for download from
  
  https://archive.xfce.org/src/xfce/garcon/4.20/garcon-4.20.0.tar.bz2
  https://archive.xfce.org/src/xfce/garcon/4.20/garcon-4.20.0.tar.bz2?sha1
  https://archive.xfce.org/src/xfce/garcon/4.20/garcon-4.20.0.tar.bz2?sha256


What is garcon?
===============

Garcon is an implementation of the freedesktop.org menu specification
replacing the former Xfce menu library libxfce4menu. It is based on
GLib/GIO only and aims at covering the entire specification except for
legacy menus.

Website: 
  https://docs.xfce.org/xfce/garcon/start


Release notes for 4.20.0
========================
- Translation Updates:
  Polish