--- /dev/null
+The person who associated a work with this deed has dedicated the work
+to the public domain by waiving all of his or her rights to the work
+worldwide under copyright law, including all related and neighboring
+rights, to the extent allowed by law.
+
+You can copy, modify, distribute and perform the work, even for
+commercial purposes, all without asking permission.
+
+See https://creativecommons.org/publicdomain/zero/1.0/ for details.