A behaviour change in microfab means that the orderer endpoint needs to
be explicitly specified when using the peer CLI to submit transactions.
Ideally the microfab environment would not require this but the
documented commands do not currently work without this.
This change updates the full-stack-asset-transfer-guide documentation so
that CLI commands include the orderer endpoint explicitly.
Signed-off-by: Mark S. Lewis <Mark.S.Lewis@outlook.com>