[template-glib] python: add python shebang

[Christian Hergert <chergert src gnome org>]

commit 57d61ba45c56c324c70019843db299daf5e47d65
Author: Christian Hergert <christian hergert me>
Date:   Sat Jan 23 12:14:44 2016 -0800

    python: add python shebang

 examples/simple.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/examples/simple.py b/examples/simple.py
old mode 100644
new mode 100755
index 06e4bf7..3206dbc
--- a/examples/simple.py
+++ b/examples/simple.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import gi
 
 gi.require_version('Template', '1.0')