chore(nodejs): update client ref docs link in metadata (#283)

Author: fhinkel

core/paginator/.repo-metadata.json

@@ -5,5 +5,5 @@
   "language": "nodejs",
   "repo": "googleapis/nodejs-paginator",
   "distribution_name": "@google-cloud/paginator",
-  "client_documentation": "https://googleapis.dev/nodejs/paginator/latest"
-}
+  "client_documentation": "https://cloud.google.com/nodejs/docs/reference/paginator/latest"
+}

core/paginator/README.md

@@ -127,7 +127,7 @@ Apache Version 2.0
 
 See [LICENSE](https://github.com/googleapis/nodejs-paginator/blob/master/LICENSE)
 
-[client-docs]: https://googleapis.dev/nodejs/paginator/latest
+[client-docs]: https://cloud.google.com/nodejs/docs/reference/paginator/latest
 
 [shell_img]: https://gstatic.com/cloudssh/images/open-btn.png
 [projects]: https://console.cloud.google.com/project