README: sandbox: Change reference to sandbox details
authorNaoki Hayama <naoki.hayama@lineo.co.jp>
Thu, 8 Oct 2020 04:16:58 +0000 (13:16 +0900)
committerTom Rini <trini@konsulko.com>
Thu, 22 Oct 2020 13:54:53 +0000 (09:54 -0400)
commitbbb140ed384867648bade5279cd7ca66c4d1bfef
tree33c14749eec9d96d0a4c3b4df17f1cea4955ee7c
parente4eb313af0986492236e7f5eb88919e20025881a
README: sandbox: Change reference to sandbox details

doc/arch/index.rst is a list of links to each architecture.
As for the sandbox details, doc/arch/sandbox.rst looks better.

Signed-off-by: Naoki Hayama <naoki.hayama@lineo.co.jp>
Reviewed-by: Simon Glass <sjg@chromium.org>
README