FAB-6133 Fix typo in configtxupdate README
FAB-6133 Fix typo in configtxupdate README

Change-Id: I00c380c5d53d28eb8d7674825bdd2d3540910e30
Signed-off-by: Gari Singh <10008a422f4be611b73174084ba2f7f909d5b402@gmail.com>

stemlending/fabric,mqshen/fabric,lukehuangch/fabric,hyperledger/fabric,manish-sethi/fabric,lukehuangch/fabric,ckeyer/fabric,hyperledger/fabric,ckeyer/fabric,manish-sethi/fabric-sidedb,lukehuangch/fabric,stemlending/fabric,xixuejia/fabric,manish-sethi/fabric-sidedb,binhn/fabric,ckeyer/fabric,binhn/fabric,mqshen/fabric,manish-sethi/fabric-sidedb,jimthematrix/fabric,muralisrini/fabric,lukehuangch/fabric,muralisrini/fabric,ckeyer/fabric,mqshen/fabric,stemlending/fabric,xixuejia/fabric,manish-sethi/fabric-sidedb,binhn/fabric,manish-sethi/fabric,manish-sethi/fabric-sidedb,muralisrini/fabric,mqshen/fabric,lukehuangch/fabric,xixuejia/fabric,jimthematrix/fabric,ckeyer/fabric,lukehuangch/fabric,mqshen/fabric,lukehuangch/fabric,mqshen/fabric,mqshen/fabric,manish-sethi/fabric-sidedb,ckeyer/fabric,ckeyer/fabric,manish-sethi/fabric-sidedb,stemlending/fabric