[PATCH 4/6] README: sandbox: Change reference to sandbox details

[Simon Glass]

On Wed, 7 Oct 2020 at 22:17, Naoki Hayama <naoki.hayama at lineo.co.jp> wrote:
>
> 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 at lineo.co.jp>
> ---
>
>  README | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Simon Glass <sjg at chromium.org>