First we need to allow your script to write to the status file without needing to be run as root. You will need to run:
This will allow your script to write to index.html to actually update it.
I assume that you are familiar a terminal-based editor (vim or nano). Run
and add the following line to the file that you see:
Save and quit. Your crontab will have been applied and the script will run every 5 minutes, assuming the system is booted up (not necessarily logged in as you).
If this seems a bit convoluted to you, I can remotely set this up for BTC0.015.