Documentation is licensed under LGPL-2.1-or-later.
Scripts are MIT to facilitate reuse.
Examples are relicensed to CC0-1.0 to maximise copy-and-paste
for users, with permission from authors.
Moving them out makes it easier to run them through a compiler, use automatic
indentation, and opens the possibility to provide a download link in the
future. I verified that all examples compile cleanly.
(2-space indentation is used because the examples are already significantly
indented in the man page, and we need to keep them narrow so that they display
well on standard terminals.)