Copyright for mate-window-applets source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: MATE Window Applets
Upstream-Contact: Martin Wimpress 
Source: https://github.com/ubuntu-mate/mate-window-applets

Files: *
Copyright: 2017, IKRadulov (https://github.com/IKRadulov)
License: GPL-3+
Comment:
 Neither license nor copyright information specified in any of the
 upstream files. Assuming copyright holder from author field in the
 upstream Git log.
 .
 Assuming license as found in LICENSE file.

Files: debian/*
Copyright: 2017, Mike Gabriel 
License: GPL-3+

License: GPL-3+
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
 Foundation, either version 3 of the License, or (at your option) any later
 version.
 .
 This program is distributed in the hope that it will be useful, but WITHOUT ANY
 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License along with
 this program.  If not, see .
 .
 On Debian systems, the complete text of the GNU General
 Public License can be found in `/usr/share/common-licenses/GPL-3'.