Update README.md

Sorry to bother you this way, but Google+ won't accept a Feb 29 birthdate.

I have a USB external HD with a bootable ubuntu 12.0.4 partition (I currently use it as an alternate boot for a Windows laptop).  The contents of my root partition is way too big to fit into the SSD of an Acer C720.  Is there some way (a) to do a legacy BIOS boot; (b) to put a minimal boot partition on the C720 with a script to mount the external drive, chroot to it, and let it run its startup script; (c) to put a minimal boot partition on the C720 and replace its mount points for root and swap with those on my hard disk; or (d) to otherwise achieve the effect of an external boot? 

You can write me at r.friedman@mindspring.com when/if you post.  And again, sorry for intruding here.