Updated the sample pbx_lua config file to reflect autoservice changes.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@317818 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/extensions.lua.sample

@@ -88,12 +88,14 @@ TRUNKMSD = 1
 --
 -- More examples can be found below.
 --
--- Before starting long running operations, an autoservice should be started
+-- An autoservice is automatically run while lua code is executing.  The
--- using the autoservice_start() function.  This autoservice will automatically
+-- autoservice can be stopped and restarted using the autoservice_stop() and
--- be stopped before executing applications and dialplan functions and will be
+-- autoservice_start() functions.  The autservice should be running before
--- restarted afterwards.  The autoservice can be stopped using
+-- starting long running operations. The autoservice will automatically be
--- autoservice_stop() and the autoservice_status() function will return true if
+-- stopped before executing applications and dialplan functions and will be
--- an autoservice is currently running.
+-- restarted afterwards.  The autoservice_status() function can be used to
+-- check the current status of the autoservice and will return true if an
+-- autoservice is currently running.
 --
 
 function outgoing_local(c, e)