one per workspace

Author: madams0013

docs/prompt_engineering/how_to_guides/trigger_webhook.mdx

@@ -19,6 +19,10 @@ In the top right corner, click on the `+ Webhook` button.
 
 Add a webhook **url** and any required **headers**.
 
+:::note
+You can only configure one webhook per workspace. If you want to configure multiple per workspace or set up a different webhook for each prompt, let us know in our [Community Slack](https://langchaincommunity.slack.com/) (sign up [here](https://www.langchain.com/join-community) if you're not already a member).
+:::
+
 To test out your webhook, click the "Send test notification" button. This will send a test notification to the webhook url you provided with a sample payload.
 
 The sample payload is a JSON object with the following fields: