kc3-lang/kc3

diff --git a/README.md b/README.md
index 4724807..14a6cbd 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,17 @@ end
      - funcall
    - defmodule
    - funcall
+
+## Copying
+
+Copyright 2022 kmx.io <contact@kmx.io>
+
+Permission is hereby granted to use this software granted
+the above copyright notice and this permission paragraph
+are included in all copies and substantial portions of this
+software.
+
+THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+THIS SOFTWARE.