update ndc-postgres registry entry

registry/postgres/README.md

@@ -3,6 +3,9 @@
 `ndc-postgres` provides a Hasura Data Connector to the PostgreSQL database,
 which can expose and run GraphQL queries via the Hasura v3 Project.
 
+- [PostgreSQL Connector information in the Hasura Connectors directory](https://hasura.io/connectors/postgres)
+- [GitHub repository](https://github.com/hasura/ndc-postgres)
+
 The connector implements the [NDC Specification](https://hasura.github.io/ndc-spec/overview.html),
 but does not currently support mutations, column relationship arguments in queries, functions or procedures.
 
@@ -19,3 +22,7 @@ The connector is hosted by Hasura and can be used from the [Hasura v3 Console](h
 Follow the [Quick Start Guide](https://hasura.io/docs/3.0/quickstart/) 
 To use the PostgreSQL data connector from the [Hasura v3 Console](https://console.hasura.io).
 
+## Troubleshooting
+
+Please [submit a Github issue](https://github.com/hasura/graphql-engine/issues/new)
+if you encounter any problems!

registry/postgres/metadata.json

@@ -16,6 +16,14 @@
   "is_verified": true,
   "is_hosted_by_hasura": true,
   "source_code": {
-    "is_open_source": false
+    "is_open_source": true,
+    "repository": "https://github.com/hasura/ndc-postgres",
+    "version": [
+      {
+        "tag": "v0.1.0",
+        "hash": "ef5b87e18b9f6e39a69dfaf94f03a1f392a659df",
+        "is_verified": true
+      }
+    ]
   }
 }