docs: clarify Pro-plan notice

Author: hardikkgupta

src/components/ProPlanNotice.mdx

@@ -7,4 +7,6 @@ However, **public open-source repositories get every Pro-tier feature for free**
 Learn more in our [introduction](../overview/introduction) and see the full comparison
 on the [pricing page](https://www.coderabbit.ai/pricing).
 
+This feature is part of the CodeRabbit Pro plan. You can use it with any public repository for free. To use it with a private repository, your organization must subscribe to CodeRabbit at the Pro tier or above. For more information on CodeRabbit pricing plans, see [pricing](https://www.coderabbit.ai/pricing).
+
 :::