update readme for latest networking templates
update readme for latest networking templates

amulyas/logstash-docker-boshrelease,cloudfoundry-community/logstash-docker-boshrelease,amulyas/logstash-docker-boshrelease,amulyas/logstash-docker-boshrelease,cloudfoundry-community/logstash-docker-boshrelease,cloudfoundry-community/logstash-docker-boshrelease