this package seems to have new commits in its VCS but has
not yet updated debian/changelog. You should consider updating
the Debian changelog and uploading this new version into the archive.
Here are the relevant commit logs:
Author: Jean-Samuel Reynaud <firstname.lastname@example.org>
Date: Thu May 14 10:08:26 2020 +0200
d/README.source: Fixup c&p error
The file is about kicad-symbols, but was taken from -templates.
Correct the instruction by simply correcting the folder name.