fix(docs): move to new client docs URL (#9)

Author: bcoe

packages/google-cloud-phishingprotection/.repo-metadata.json

@@ -2,12 +2,12 @@
   "name": "phishing-protection",
   "name_pretty": "Phishing Protection",
   "product_documentation": "https://cloud.google.com/phishing-protection/docs/",
-  "client_documentation": "https://googleapis.dev/nodejs/phishing-protection/latest/index.html",
+  "client_documentation": "https://googleapis.dev/nodejs/phishing-protection/latest",
   "issue_tracker": "",
   "release_level": "beta",
   "language": "nodejs",
   "repo": "googleapis/nodejs-phishing-protection",
   "distribution_name": "@google-cloud/phishing-protection",
   "api_id": "phishingprotection.googleapis.com",
   "requires_billing": true
-}
+}

packages/google-cloud-phishingprotection/README.md

@@ -117,7 +117,7 @@ Apache Version 2.0
 
 See [LICENSE](https://github.com/googleapis/nodejs-phishing-protection/blob/master/LICENSE)
 
-[client-docs]: https://googleapis.dev/nodejs/phishing-protection/latest/index.html
+[client-docs]: https://googleapis.dev/nodejs/phishing-protection/latest
 [product-docs]: https://cloud.google.com/phishing-protection/docs/
 [shell_img]: https://gstatic.com/cloudssh/images/open-btn.png
 [projects]: https://console.cloud.google.com/project