Update README.md

README.md

@@ -8,13 +8,13 @@ A simple watchdog to monitor and keep alive a process. Your process should updat
 
 Install the latest version with
 ```
-$ composer require blacknell/watchdog
+composer require blacknell/watchdog
 ```
 ## Sample code
 See [example/wrapper.php](https://github.com/blacknell/watchdog/blob/master/example/wrapper.php)
 ## Usage
 Run from within crontab at an interval less frequent than the watchdog file update rate.
-`0,5,10,15,20,25,30,35,40,45,50,55 * * * * sudo /usr/bin/php /home/pi/heating/watchdog.php > /dev/null 2>&1`
+`*/5 * * * * sudo /usr/bin/php /home/pi/heating/watchdog.php > /dev/null 2>&1`
 ## Logging
 PSR-3 logging is supported via [monolog/monolog](https://github.com/Seldaek/monolog) by passing 
 an optional `Logger` object to the API constructor.