Updated README to express new instant-kill option

README.md

@@ -63,6 +63,10 @@ clean up all the inter-module references, and without a whole new
       --force-watch
         Use fs.watch instead of fs.watchFile.
         This may be useful if you see a high cpu load on a windows machine.
+		
+	  --instant-kill
+	    Instantly kills the server process, instead of gracefully shutting down the server.
+		This can be useful when the node app has events attached to SIGTERM or SIGINT so as to do a graceful shutdown before the process exits.
 
       -h|--help|-?
         Display these usage instructions.