Copyright for pftools source package in Jammy

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Contact: pftools@isb-sib.ch
                  prosite@expasy.org (via request tracker)
                  Alan.Bridge@sib.swiss, Christian.Sigrist@sib.swiss, Gregoire.Rossier@sib.swiss
Source: https://github.com/sib-swiss/pftools3/releases

Files: *
Copyright: 2002-2011 Alan Bridge, Christian Sigrist, Gregoire Rossier
License: GPL-3

Files: debian/*
Copyright: 2017 Andreas Tille 
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.
 .
    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.
 .
 On Debian systems you can find a copy of the GNU General Public
 License at /usr/share/common-licenses/GPL-3.