Improve docs or fix parameter order

[iago1460]

If the extra parameters are at the end, like in unix style, are ignored:
flash hypriotos-rpi-v1.4.0.img.zip --device disk4 --config device-init.yaml --bootconf config.txt
device, config and bootconf are being ignored without raising any warning.

The current way is:
flash --device disk4 --config device-init.yaml --bootconf config.txt hypriotos-rpi-v1.4.0.img.zip
which is a bit weird.

Thanks

[StefanScherer]

Yes, options after the SD card does not work, but that's "standard" in the getopts we use in the script. If you know another way, let me know.

So showing the usage in https://github.com/hypriot/flash#usage didn't help you?

$ flash --help
usage: /Users/stefan/bin/flash [options] name-of-rpi.img

[iago1460]

I missed that bit, but I still think that raising some kind of error/warning if any parameter is not processed would be ideal.

[StefanScherer]

Closing due to inactivity.