rename auth topic

Signed-off-by: Craig <craig.osterhout@docker.com>

Author: craig-osterhout

content/reference/api/registry/token.md

@@ -1,6 +1,5 @@
 ---
-linktitle: "Token Authentication Specification"
-title: Docker Registry v2 authentication via central service
+title: Registry Authentication
 description: "Specifies the Docker Registry v2 authentication"
 keywords: registry, on-prem, images, tags, repository, distribution, Bearer authentication, advanced
 ---