[network-manager-applet] release: update NEWS

[Beniamino Galvani <bgalvani src gnome org>]

commit f205e5afa0bf291d7399c174aebd3f8eb4e39ab2
Author: Beniamino Galvani <bgalvani redhat com>
Date:   Mon May 10 08:25:58 2021 +0200

    release: update NEWS

 NEWS | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
---
diff --git a/NEWS b/NEWS
index 46814e88..2d32a8d9 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,17 @@
+=======================================================
+network-manager-applet-1.22.0
+Overview of changes since network-manager-applet-1.20.0
+=======================================================
+
+* Support activating WireGuard connections as VPNs from the applet.
+* Fix nm-connection-editor crash when evaluating secondary
+  connections.
+* Show missing toggle in the 802.1X security page of the editor.
+* Fix updating Polkit permission in the editor.
+* Adapt peers table in the WireGuard editor page when the window is
+  resized.
+* Update translations.
+
 =======================================================
 network-manager-applet-1.20.0
 Overview of changes since network-manager-applet-1.18.0