[atk] Update AUTHORS

[Alejandro Piñeiro Iglesias <apinheiro src gnome org>]

commit 47fda931392373f1d8e7ccb9db7250da9a4b1e36
Author: Alejandro Piñeiro <apinheiro igalia com>
Date:   Wed Aug 9 09:16:02 2017 +0200

    Update AUTHORS

 AUTHORS |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/AUTHORS b/AUTHORS
index 0079aa2..ba67114 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -9,8 +9,11 @@ Padraig Obriain <padraig obriain sun com>
 
 The ATK Team (in alphabetical order)
 ====================================
-Leon Fan <leon fan oracle com>
 Alejandro Pi�eiro Iglesias <apinheiro igalia com>
+
+Past Maintainers
+=============================
+Leon Fan <leon fan oracle com>
 Li Yuan <lee yuan oracle com>