[gtksourceview] AUTHORS: update active authors

[Christian Hergert <chergert src gnome org>]

commit 607d57b6c7ada3ce07b156f8725c1eefbe6cafdd
Author: Christian Hergert <chergert redhat com>
Date:   Wed Apr 24 11:36:10 2019 -0700

    AUTHORS: update active authors

 AUTHORS | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/AUTHORS b/AUTHORS
index 2b4bdae4..34daa94d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,15 +1,16 @@
 Active authors:
 
-Ignacio Casal Quinteiro <icq gnome org>
-Jesse van den Kieboom <jessevdk gmail com>
-Paolo Borelli <pborelli katamail com>
-Sébastien Wilmet <swilmet gnome org>
+Christian Hergert <christian hergert me>
 
 Old contributors:
 
 Chris Phelps <chicane reninet com>
 Gustavo Giráldez <gustavo giraldez gmx net>
+Ignacio Casal Quinteiro <icq gnome org>
 Jeroen Zwartepoorte <jeroen xs4all nl>
+Jesse van den Kieboom <jessevdk gmail com>
 Mikael Hermansson <mike tielie gmail com>
+Paolo Borelli <pborelli katamail com>
 Paolo Maggi <paolo gnome org>
+Sébastien Wilmet <swilmet gnome org>
 Yevgen Muntyan <muntyan tamu edu>