Updated README

diff --git a/README.md b/README.md
index a84fef841167c56e138edc335d6925314dd73f17..d00b2697a9c1e488a6c9aa3e624e226c3fe92378 100644 (file)
--- a/README.md
+++ b/README.md
@@ -2,7 +2,8 @@
 
 Rather than reporting all MAC addresses seen ```mqtt-arp``` takes a list of MACs to watch for. I have this configured for my phone, resulting in a reasonable proxy for whether I am home or not. ```mqtt-arp``` will report as soon as the device is seen, and send rate-limited (at most once every 2 minutes) updates when it is seen again. If the device is not seen for at least 10 minutes the location will be reported as "unknown".
 
 
 Rather than reporting all MAC addresses seen ```mqtt-arp``` takes a list of MACs to watch for. I have this configured for my phone, resulting in a reasonable proxy for whether I am home or not. ```mqtt-arp``` will report as soon as the device is seen, and send rate-limited (at most once every 2 minutes) updates when it is seen again. If the device is not seen for at least 10 minutes the location will be reported as "unknown".
 

-There is basic configuration file support; by default ```mqtt-arp``` will read ```/etc/mqtt-arp.conf```. The following aspects can be configured at run time:
+There is basic configuration file support; by default ```mqtt-arp``` will read ```/etc/mqtt-arp.conf```. The location can be overridden, see below. 
+The following aspects can be configured at run time:

 
  * MQTT host (-h / --host / mqtt_host)
  * MQTT post (-p / --port / mqtt_port)
 
  * MQTT host (-h / --host / mqtt_host)
  * MQTT post (-p / --port / mqtt_port)


@@ -12,5 +13,6 @@ There is basic configuration file support; by default ```mqtt-arp``` will read `
  * Location to report when device is present (-l / --location / location)
  * Path to SSL certificate bundle (-c / --capath / capath)
  * MAC addresses to watch for  (-m / --mac / mac)
  * Location to report when device is present (-l / --location / location)
  * Path to SSL certificate bundle (-c / --capath / capath)
  * MAC addresses to watch for  (-m / --mac / mac)

+ * Read config file at specific location (-f / --configfile / file path)

 
 This code is released as GPLv3+ and is available at [https://the.earth.li/gitweb/?p=mqtt-arp.git;a=summary](https://the.earth.li/gitweb/?p=mqtt-arp.git;a=summary) or on GitHub for easy whatever at [https://github.com/u1f35c/mqtt-arp](https://github.com/u1f35c/mqtt-arp)
 
 This code is released as GPLv3+ and is available at [https://the.earth.li/gitweb/?p=mqtt-arp.git;a=summary](https://the.earth.li/gitweb/?p=mqtt-arp.git;a=summary) or on GitHub for easy whatever at [https://github.com/u1f35c/mqtt-arp](https://github.com/u1f35c/mqtt-arp)