doc: update changelog

CHANGELOG.md

@@ -7,9 +7,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 
 ### Added
 - packages: system/virtualization: add [libguestfs-tools](https://packages.debian.org/libguestfs-tools), [virt-p2v](https://packages.debian.org/virt-p2v), [libguestfs-rsync](https://packages.debian.org/libguestfs-rsync), [libguestfs-rescue](https://packages.debian.org/libguestfs-rescue)
+- packages: internet: add [purple-discord](https://packages.debian.org/bullseye/purple-discord (Discord messaging service plugin for pidgin/libpurple)
 
 ### Removed
 - packages: remove [gnome-clocks](https://packages.debian.org/bullseye/gnome-clocks)
+- packages: remove NVIDIA proprietary drivers from the default installation
 
 ### Changed
 - no longer install Linux kernel/firmware and NVIDIA drivers from backports, use versions from Debian Stable