docs: add tutorial for using suzyq
docs: add tutorial for using suzyq

BUG=b:140551928
BRANCH=none
TEST=read doc.

Change-Id: I1032433de1f8284cffff1e12e906d3fffd5ae32a
Signed-off-by: Mary Ruthven <81380f3403fed74252e92df3ed012a1819ec6296@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1816871
Reviewed-by: Wai-Hong Tam <04b587fdf5845741a0c5a8b9cd59ca72d73ef8fc@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec