Copyright for ukui-desktop-environment source package in Nile V2.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Comment:
 This package is a meta-package.

Files: debian/*
Copyright: 2011-2014, Stefano Karapetsas 
           2014, Mike Gabriel 
           2023, Kylin Software Co.,Ltd.
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.
Comment:
 On Debian systems, a copy of the GNU General Public License version 3
 can be found in /usr/share/common-licenses/GPL-3.