Add env vars for port doc (deployment_port, config_choice, and haproxy_note) * only context with reference to HAProxy
Add env vars for port doc (deployment_port, config_choice, and haproxy_note)
* only context with reference to HAProxy

cwest/docs-book-cloudfoundry,cwest/docs-book-cloudfoundry,cwest/docs-book-cloudfoundry,shalako/docs-book-cloudfoundry,bridgetkromhout/docs-book-cloudfoundry,bridgetkromhout/docs-book-cloudfoundry,cloudfoundry/docs-book-cloudfoundry,cwest/docs-book-cloudfoundry,swisscom/docs-appcloud-book,swisscom/docs-appcloud-book,shalako/docs-book-cloudfoundry,cloudfoundry/docs-book-cloudfoundry,swisscom/docs-appcloud-book,bridgetkromhout/docs-book-cloudfoundry,cloudfoundry/docs-book-cloudfoundry,bridgetkromhout/docs-book-cloudfoundry,cloudfoundry/docs-book-cloudfoundry,shalako/docs-book-cloudfoundry,swisscom/docs-appcloud-book,shalako/docs-book-cloudfoundry