[BRAPI]Release Notes - Automatic Request Headers (#22269)

* initial rest API guide

* added automatic request headers

* Revert commit

* moved to BRAPI

Author: daisyfaithauma

src/content/release-notes/browser-rendering.yaml

@@ -5,6 +5,10 @@ productLink: "/browser-rendering/"
 productArea: Developer platform
 productAreaLink: /workers/platform/changelog/platform/
 entries:
+  - publish_date: "2025-04-30"
+    title: Automatic Request headers
+    description: |-
+      * [Clarified Automatic Request headers](/browser-rendering/reference/automatic-request-headers/) in Browser Rendering. These headers are unique to Browser Rendering and are automatically included and cannot be removed or overridden.
   - publish_date: "2025-04-07"
     title: New free tier and REST API GA with additional endpoints
     description: |-