docs: update readme with form

Author: averikitsch

README.md

@@ -6,18 +6,27 @@
 This Gemini CLI extension provides a set of tools to interact with [Cloud SQL for PostgreSQL](https://cloud.google.com/sql/docs/postgres) monitoring metrics. It allows you to fetch a wide range of database metrics, enabling comprehensive monitoring of database performance and health directly from the [Gemini CLI](https://google-gemini.github.io/gemini-cli/), using natural language prompts.
 
 Learn more about [Gemini CLI Extensions](https://github.com/google-gemini/gemini-cli/blob/main/docs/extensions/index.md).
+> [!IMPORTANT]
+> **We Want Your Feedback!**
+> Please share your thoughts with us by filling out our feedback [form][form]. 
+> Your input is invaluable and helps us improve the project for everyone.
+
+[form]: https://docs.google.com/forms/d/e/1FAIpQLSfEGmLR46iipyNTgwTmIDJqzkAwDPXxbocpXpUbHXydiN1RTw/viewform?usp=pp_url&entry.157487=cloud-sql-postgresql-observability
 
 ## Why Use the Cloud SQL for PostgreSQL Observability Extension?
 
 * **Natural Language Management:** Stop wrestling with complex monitoring queries. Explore monitoring data by describing what you want in plain English.
 * **Seamless Workflow:** As a Google-developed extension, it integrates seamlessly into the Gemini CLI environment. No need to constantly switch contexts for common tasks.
 
+
 ## Prerequisites
 
 Before you begin, ensure you have the following:
 
 * [Gemini CLI](https://github.com/google-gemini/gemini-cli) installed with version **+v0.6.0**.
+* Setup Gemini CLI [Authentication](https://github.com/google-gemini/gemini-cli/tree/main?tab=readme-ov-file#-authentication-options).
 * A Google Cloud project with the **Cloud Monitoring API** enabled.
+* Ensure [Application Default Credentials](https://cloud.google.com/docs/authentication/gcloud) are available in your environment.
 * IAM Permissions:
   * Monitoring Viewer (`roles/monitoring.viewer`)