Update the docker readme file
Update the docker readme file

gayangunarathne/private-paas-cartridges,wso2/private-paas-cartridges,wso2/private-paas-cartridges,gayangunarathne/private-paas-cartridges,gayangunarathne/private-paas-cartridges,wso2/private-paas-cartridges,pubudu538/private-paas-cartridges,pubudu538/private-paas-cartridges,wso2/private-paas-cartridges,gayangunarathne/private-paas-cartridges,pubudu538/private-paas-cartridges,pubudu538/private-paas-cartridges