Add an example SBAT workflow document
Add an example SBAT workflow document

Add a file that contains example workflows for SBAT and better illustrate
what type of content is expected to be present in both the .sbat section
and the SBAT authenticated EFI variable.

Signed-off-by: Peter Jones <2e0a021e603479ff81838c00c3b770daca4e0214@redhat.com>

rhinstaller/shim,rhinstaller/shim,rhinstaller/shim