diff --git a/README.md b/README.md
index c61db6e..3183656 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ GoveeBTTempLogger creates a log file, if specified by the -l or --log option, fo
 There seems to be a problem with Bluetooth on the Raspberry Pi Zero 2 W and Raspbian GNU/Linux 11 (bullseye) where BTLE Scanning doesn't start. It's reported to work on the same hardware if running Raspbian GNU/Linux 10 (buster) https://github.com/wcbonner/GoveeBTTempLogger/issues/50 Any suggestions for a solution are appreciated. 
 
 ### Minor update 2022-12-17
-Added the option --index to create an html index file based on the existing log files. Example command to create index: 
+Added the option --index to create an html index file based on the existing log files. This option creates an index file and exits without running any of the bluetooth code. It can be run without affecting a running instance of the program listening to Bluetooth advertisments. Example command to create index: 
 
 ```sh
 sudo /usr/local/bin/goveebttemplogger --log /var/log/goveebttemplogger/ --index index.html
@@ -129,7 +129,7 @@ sudo apt install bluetooth bluez libbluetooth-dev -y
  * -a (--average) Affects MRTG output. The parameter is a number of minutes. 0 simply returns the last value in the log file. Any number more than zero will average the entries over that number of minutes. If no entries were logged in that time period, no results are returned. MRTG graphing is then determined by the setting of the unknaszero option in the MRTG.conf file.
  * -d (--download) download the 20 days historical data from each device. This is still very much a work in progress.
  * -s (--svg) SVG output directory. Writes four SVG files per device to this directory every 5 minutes that can be used in standard web page. 
- * -i (--index) HTML index file for SVG files, must be paired with log directory. HTML file is a fully qualified name. This is meant as a one time run option just to create a simple index of all the SVG files.
+ * -i (--index) HTML index file for SVG files, must be paired with log directory. HTML file is a fully qualified name. This is meant as a one time run option just to create a simple index of all the SVG files. The program will exit after creating the index file.
  * -T (--titlemap) SVG-title fully-qualified-filename. A mapfile with bluetooth addresses as the beginning of each line, and a replacement title to be used in the SVG graph.
  * -c (--celsius) SVG output using degrees C
  * -b (--battery) Draw the battery status on SVG graphs. 1:daily, 2:weekly, 4:monthly, 8:yearly