docs: add repo-metadata.json files for modules we publish Cloud RAD d… (#2003)

* docs: add repo-metadata.json files for modules we publish Cloud RAD documentation for

* add newline

* use language-agnostic product documentation uri

* add in for gax

Author: alicejli

api-common-java/.repo-metadata.json

@@ -0,0 +1,13 @@
+{
+  "api_shortname": "api-common",
+  "client_documentation": "https://cloud.google.com/java/docs/reference/api-common/latest/overview",
+  "product_documentation": "https://github.com/googleapis/sdk-platform-java/tree/main/api-common-java",
+  "api_description": "API Common for Java is a library for foundational types relating to Google APIs.",
+  "name_pretty": "API Common for Java",
+  "release_level": "stable",
+  "language": "java",
+  "repo": "googleapis/sdk-platform-java",
+  "repo_short": "api-common-java",
+  "library_type": "OTHER",
+  "distribution_name": "com.google.api:api-common"
+}

gax-java/.repo-metadata.json

@@ -0,0 +1,12 @@
+{
+  "api_shortname": "gax",
+  "name_pretty": "gax",
+  "product_documentation": "https://github.com/googleapis/sdk-platform-java/blob/main/gax-java/README.md",
+  "api_description": "Google API Extensions for Java (GAX Java) is a library which aids in the development of client libraries for server APIs, based on GRPC and Google API conventions.",
+  "client_documentation": "https://cloud.google.com/java/docs/reference/gax/latest/overview",
+  "language": "java",
+  "repo": "googleapis/sdk-platform-java",
+  "repo_short": "gax-java",
+  "library_type": "OTHER",
+  "distribution_name": "com.google.api:gax"
+}

java-common-protos/.repo-metadata.json

@@ -1,14 +1,14 @@
 {
   "api_shortname": "common-protos",
   "name_pretty": "Common Protos",
-  "product_documentation": "n/a",
-  "api_description": "n/a",
+  "product_documentation": "https://github.com/googleapis/api-common-protos",
+  "api_description": "Protobuf classes for Google's common protos.",
   "client_documentation": "https://cloud.google.com/java/docs/reference/proto-google-common-protos/latest/history",
   "release_level": "stable",
   "transport": "grpc",
   "requires_billing": true,
   "language": "java",
-  "repo": "googleapis/java-common-protos",
+  "repo": "googleapis/sdk-platform-java",
   "repo_short": "java-common-protos",
   "library_type": "OTHER",
   "distribution_name": "com.google.api.grpc:proto-google-common-protos",

java-core/.repo-metadata.json

@@ -1,10 +1,12 @@
 {
   "api_shortname": "google-cloud-core",
-  "client_documentation": "https://github.com/googleapis/sdk-platform-java/tree/main/java-core",
+  "product_documentation": "https://github.com/googleapis/sdk-platform-java/tree/main/java-core",
+  "client_documentation": "https://cloud.google.com/java/docs/reference/google-cloud-core/latest/overview",
+  "api_description": "A set of classes and utilities used in Google Cloud Java libraries.",
   "name_pretty": "Google Cloud Core",
   "release_level": "stable",
   "language": "java",
-  "repo": "googleapis/google-cloud-java",
+  "repo": "googleapis/sdk-platform-java",
   "repo_short": "java-core",
   "library_type": "CORE",
   "distribution_name": "com.google.cloud:google-cloud-core"

java-iam/.repo-metadata.json

@@ -1,14 +1,14 @@
 {
   "api_shortname": "iam",
   "name_pretty": "IAM",
-  "product_documentation": "n/a",
-  "api_description": "n/a",
-  "client_documentation": "https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/history",
+  "product_documentation": "https://cloud.google.com/iam",
+  "api_description": "Manages access control for Google Cloud Platform resources",
+  "client_documentation": "https://cloud.google.com/java/docs/reference/proto-google-iam-v1/latest/overview",
   "release_level": "stable",
   "transport": "grpc",
   "requires_billing": true,
   "language": "java",
-  "repo": "googleapis/java-iam",
+  "repo": "googleapis/sdk-platform-java",
   "repo_short": "java-iam",
   "library_type": "OTHER",
   "distribution_name": "com.google.api.grpc:proto-google-iam-v1",