Fix invalid information in 'Transit Stage2 to Payload'.
Additionally minor changes have been updated.
- typo. make -> mkdir
- adding a screenshot for 'before Stage1B entry point'
- updating comments and description
Signed-off-by: Aiden Park <aiden.park@intel.com>
Add initial training materials that demonstrate Slim Bootloader basic features on QEMU target.
TODO: QEMU OS image generation instruction will provided in a follow-up PR.