Update readme.md

dump1090_status/readme.md

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 ## About
 
 This program checks if dump1090 is running correctly by checking if there is still output of the decoded data, this can be seen in /run/dump1090-fa/aircraft.json and if aircarfts is empty we will know that dump1090 is not generating output.
+
+This is achieved through jQuery by checking the string named aircraft within the aircraft file being tracked.
+
+## Compatiblity
+
+I use dump1090-fa
+
+The script is adapted to my services and dump version, you can customize it to better adapt it to your needs.
+
+## Log
+
+A log file is saved in: /var/log/dump1090_restart_log.txt