Clarify Requirements for webhooks (#17752)

* Clarify Requirements for webhooks

* Update src/content/docs/notifications/get-started/configure-webhooks.mdx

---------

Co-authored-by: Patricia Santa Ana <[email protected]>

Author: anay-208

src/content/docs/notifications/get-started/configure-webhooks.mdx

@@ -8,7 +8,7 @@ sidebar:
 
 :::note
 
-This feature is only available if your account has at least one paid feature. For more information, refer to our [plans](https://www.cloudflare.com/plans/). 
+This feature is only available if your account has at least one zone with a pro plan or above. For more information, refer to our [plans](https://www.cloudflare.com/plans/). 
 :::
 
 There are a variety of services you can connect to Cloudflare using webhooks to receive notifications from your Cloudflare account. Refer to the table below to learn how to connect your Cloudflare account to [popular webhook services](#popular-webhook-services).