Copyright for tl-expected source package in Sid

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: expected
Upstream-Contact: Sy Brand 
Source: https://github.com/TartanLlama/expected

Files: *
License: CC0-1.0
Copyright: 2017-2023, Sy Brand 

Files: debian/*
License: CC0-1.0
Copyright: 2020-2023, Nicholas Guriev 

License: CC0-1.0
 To the extent possible under law, the author(s) have dedicated all
 copyright and related and neighboring rights to this software to the
 public domain worldwide. This software is distributed without any warranty.
 .
 You should have received a copy of the CC0 Public Domain Dedication
 along with this software. If not, see
 .
 .
 On Debian-like systems, full text of the license is available in
 .