Convert the HTML document to markdown and place it under security section.
Change-Id: I212c6d0c977fd6772371ff6676478d48cc215d6e
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32610
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>