From 3247e4ae73a12fd327b78a874fffc0d338cf5342 Mon Sep 17 00:00:00 2001
From: Grey Christoforo <grey@christoforo.net>
Date: Fri, 16 Dec 2016 17:53:51 +0000
Subject: [PATCH] add new help

---
 README.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 5a4625f..36a3304 100644
--- a/README.md
+++ b/README.md
@@ -25,8 +25,8 @@ cd mppTracker
 ```
 $ ./mppTracker.py -h
 usage: mppTracker.py [-h] [--dummy] [--visa_lib VISA_LIB] [--reverse_polarity]
-                     [--file FILE]
-                     address t_dwell t_total
+                     [--file FILE] [--scan]
+                     [address] [t_dwell] [t_total]
 
 Max power point tracker for solar cells using a Keithley 2400 sourcemeter
 (hopefully robust enough for perovskites). Data is written to stdout and human
@@ -46,6 +46,8 @@ optional arguments:
   --reverse_polarity   Swaps voltage polarity on output terminals.
   --file FILE          Write output data stream to this file in addition to
                        stdout.
+  --scan               Scan for obvious VISA resource names, print them and
+                       exit
 ```
 
 ## Output format