webhook key with embedded runtime expression

Author: darrelmiller

versions/3.0.md

@@ -1853,8 +1853,7 @@ A callback to the URL specified by the `url` property in the request body.
 
 ```yaml
 myWebhook:
-  '$request.body#/url':
-  'http://notificationServer.com?transactionId={$request#/body}&email={$request.body#/email}}'
+  'http://notificationServer.com?transactionId={$request.body#/id}&email={$request.body#/email}}':
     post:
       requestBody:
         description: Callback payload