Include basic installation and usage instructions for upstart script.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@200430 65c4cc65-6c06-0410-ace0-fbb531ad65f3

contrib/upstart/asterisk.upstart-0.3.9

@@ -1,6 +1,14 @@
 # asterisk
 #
 # Upstart control file for the Asterisk PBX
+#
+# To install, rename this file to 'asterisk' and copy it to /etc/event.d/
+#
+# To start asterisk manually:
+#     sudo start asterisk
+#
+# To stop asterisk manually:
+#     sudo stop asterisk
 
 description "Asterisk PBX"
 version     "1.6.3"