Multisite. I upload the pluging WPCF to change Wpconfig.php

I set up Pluging WPCF, then enter to editor WPCF, I change the tab multisite, setup Multisite, enable multisite, and enable subdomain, and full other fields Domain (, root path (htpps://, site id (1), current blog Id (1), primary network id (1). then save
but i dont appear how multisite