From 89fb2f470b08068a8578e75fd093bc62493ec413 Mon Sep 17 00:00:00 2001
From: pux <pux@pux.dom>
Date: Mon, 22 Mar 2021 00:52:34 +0100
Subject: update README after code change

---
 README.md | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

(limited to 'README.md')

diff --git a/README.md b/README.md
index 0324d37..d37a778 100644
--- a/README.md
+++ b/README.md
@@ -3,20 +3,22 @@
 ## Calculate dipole antenna leg length
 
 ```text
-usage: calctenna.py [-h] -f [frequency] [-V [velocity_factor]] [-q]
+usage: calctenna.py [-h] [-V velocity_factor] [-q] [-t] [frequency]
+
+positional arguments:
+  frequency             desired frequency in Hz (e.g. 144800000 or 433e6, ...)
 
 optional arguments:
   -h, --help            show this help message and exit
-  -f [frequency], --frequency [frequency]
-                        desired frequency in Hz (e.g. 144800000 or 433e6, ...)
-  -V [velocity_factor], --velocity-factor [velocity_factor]
+  -V velocity_factor, --velocity-factor velocity_factor
   -q, --quiet           print only result
+  -t, --tests           run unit tests and exit
 ```
 
 ### Example output
 
 ```text
-$ calctenna.py -f 104e6
+$ calctenna.py 104e6
 Desired Frequency: 104e6 Hz
 Wavelength: 2.883 m
 Wavelength / 2: 1.441 m
-- 
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