add comment to part6 list1
Merge pull request #1 from d-aki/part6_list1

add comment to part6 list1
Change LICENSE
Add graffle file
Add exported eps
Add virtio-net, virtqueue, vtd figures
import part3
move figures to work/figures/
Add part4
Add part5
Add part6, part7
figures for part1
figures for part2
figures for part3-7
figures for part8-10
Add vt-d descriptions
figures for part11-19
add comment to part6 list1
move part1 figures to figures/
Add .gitignore