Update command syntax in documentation
Update command syntax in documentation

FAB-13254 Commands based on 'curl' in 'install' doc are incorrect

Change-Id: Ieac1f68d9e58f4bd0a8cce9b89dc21739adf0b0f
Signed-off-by: Tim Johnson <c924ec8e9bd900abfa7cd606c1679befe515cdef@linuxfoundation.org>

hyperledger/fabric,stemlending/fabric,hyperledger/fabric,binhn/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,stemlending/fabric,stemlending/fabric,muralisrini/fabric,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,manish-sethi/fabric-sidedb,muralisrini/fabric,manish-sethi/fabric-sidedb,jimthematrix/fabric,manish-sethi/fabric,muralisrini/fabric,jimthematrix/fabric,manish-sethi/fabric-sidedb,stemlending/fabric,manish-sethi/fabric,binhn/fabric,binhn/fabric