Copyright for manpages-zh source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: manpages-zh
Upstream-Contact: Boyuan Yang <073plan@gmail.com>
Source: https://github.com/man-pages-zh/manpages-zh.git

Files: *
Copyright: 2005, Carlos Z.F. Liu 
           2008, LI Daobing 
           2008, Ji ZhengYu 
           2000-2004, CMPP Project 
           2016, Boyuan Yang <073plan@gmail.com>
License: GFDL-1.2+

Files: debian/*
Copyright: 2008-2011, LI Daobing 
           2016, Boyuan Yang <073plan@gmail.com>
License: GFDL-1.2+

License: GFDL-1.2+
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.2
 or any later version published by the Free Software Foundation;
 with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
 A copy of the license is included in the section entitled "GNU
 Free Documentation License".
 .
 The complete text of the GNU Free Documentation License Version 1.2 can be
 found in  `/usr/share/common-licenses/GFDL-1.2'.