Add feedback section to BigQuery Agent Analytics (#1314)

Added a feedback section for BigQuery Agent Analytics.

Author: haiyuan-eng-google

docs/integrations/bigquery-agent-analytics.md

@@ -669,6 +669,9 @@ To connect this dashboard to your own BigQuery table, use the following link for
 https://lookerstudio.google.com/reporting/create?c.reportId=f1c5b513-3095-44f8-90a2-54953d41b125&ds.ds3.connector=bigQuery&ds.ds3.type=TABLE&ds.ds3.projectId=<your-project-id>&ds.ds3.datasetId=<your-dataset-id>&ds.ds3.tableId=<your-table-id>
 ```
 
+## Feedback
+We welcome your feedback on BigQuery Agent Analytics. If you have questions, suggestions, or encounter any issues, please reach out to the team at bqaa-feedback@google.com.
+
 ## Additional resources
 
 -   [BigQuery Storage Write API](https://cloud.google.com/bigquery/docs/write-api)