add auto start script

how to use:
vim /etc/rc.local, then add
cd /home/git/gogs; scripts/autoboot.sh
(goes path you can replace your path)

scripts/autoboot.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+su git -c "/home/git/gogs/scripts/gogs_supervisord.sh restart"