document how to use buildbox with buildgrid
Description
Document how to use buildbox with buildgrid. I decided not to put build instructions in this document, and instead referred to the individual repos' README. Which we will have to eventually fill out with build instructions. I also did not explain how to configure platform properties, or how to get a chroot image into CAS, in much detail. I am not sure where is the best location to put that information.
Edited by Richard Kennedy