Explain licensing in AUTHORS file

diff --git a/AUTHORS b/AUTHORS
index 4a6576485c7476f01340c663451c6bf1d76efed7..70242f53697fb3de203bae56948c2714a1cd868b 100644 (file)
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,3 +1,7 @@
+Authors and copyright holders of this package in no particular order. By adding
+yourself to this list you agree to license your contributions under the
+relevant license (see the LICENSE file).
+
 Hraban Luyat <hraban@0brg.net>
 Dejian Xu <xudejian2008@gmail.com>
 Tobias Wellnitz <tobias.wellnitz@gmail.com>