doc: change documentation license to CC BY-SA 4.0

Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/doc/nftables.xml b/doc/nftables.xml
index dc6818056a9b649a385e5fded196e56c8aed59ca..702891c23d899b03bcf9efbd9dca23accb2eb2b7 100644 (file)
--- a/doc/nftables.xml
+++ b/doc/nftables.xml
@@ -2155,9 +2155,14 @@ filter output oif wlan0
                        Copyright &copy; 2008-2014 Patrick McHardy <email>kaber@trash.net</email>
                </para>
                <para>
-                       This program is free software; you can redistribute it and/or modify
+                       nftables is free software; you can redistribute it and/or modify
                        it under the terms of the GNU General Public License version 2 as
                        published by the Free Software Foundation.
                </para>
+               <para>
+                       This documentation is licenced under the terms of the Creative
+                       Commons Attribution-ShareAlike 4.0 license,
+                       <ulink url="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA 4.0</ulink>.
+               </para>
        </refsect1>
 </refentry>