recording grub mod for system 76 laptops

recording grub mod for system 76 laptops

addresses a freeze-up condition when returning from sleep.  doesn't totally eliminate it but makes the sleep process a lot more reliable.  usually, if sleep is going to work, it will keep working for months now.  before any old sleep might come up with a dead session where machine was running but had no activity at all and had to be totally powered off to return to normal state.