Update to gnatsd/README.md clarifying single-user and token-based authentication issue #316 [ci skip]
Update to gnatsd/README.md clarifying single-user and token-based authentication issue #316
[ci skip]

apcera/gnatsd,wallyqs/gnatsd,wallyqs/gnatsd,nats-io/gnatsd,nats-io/gnatsd,apcera/gnatsd