chore: update repo-metadata.json client_documentation link (#707)

Author: eaball35

.repo-metadata.json

@@ -2,7 +2,7 @@
   "name": "logging",
   "name_pretty": "Cloud Logging",
   "product_documentation": "https://cloud.google.com/logging/docs",
-  "client_documentation": "https://googleapis.dev/java/google-cloud-logging/latest/",
+  "client_documentation": "https://cloud.google.com/java/docs/reference/google-cloud-logging/latest/history",
   "issue_tracker": "https://issuetracker.google.com/savedsearches/559764",
   "release_level": "ga",
   "language": "java",

README.md

@@ -352,7 +352,7 @@ Java 11 | [![Kokoro CI][kokoro-badge-image-5]][kokoro-badge-link-5]
 Java is a registered trademark of Oracle and/or its affiliates.
 
 [product-docs]: https://cloud.google.com/logging/docs
-[javadocs]: https://googleapis.dev/java/google-cloud-logging/latest/
+[javadocs]: https://cloud.google.com/java/docs/reference/google-cloud-logging/latest/history
 [kokoro-badge-image-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging/java7.svg
 [kokoro-badge-link-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging/java7.html
 [kokoro-badge-image-2]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging/java8.svg