ignore registry api links

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

Author: craig-osterhout

.htmltest.yml

@@ -9,6 +9,7 @@ IgnoreDirectoryMissingTrailingSlash: true
 IgnoreURLs:
 - "^/reference/api/hub/.*$"
 - "^/reference/api/engine/v.+/#.*$"
+- "^/reference/api/registry/.*$"
 IgnoreDirs:
 - "registry/configuration"
 - "compose/compose-file" # temporarily ignore until upstream is fixed