update changelog entry

Author: devalog

fern/products/docs/pages/changelog/2025-11-03.mdx

@@ -1,8 +1,8 @@
 ## External product links
 
-You can now configure products to link to external URLs instead of hosting documentation on your site. This is useful when you want to include links to separate applications, third-party documentation, or other external resources in your product switcher.
+You can now configure products to link to external URLs (separate applications, third-party documentation, or other external resources) instead of documentation within your site.
 
-External products appear in the product switcher alongside internal products but navigate users to the specified URL when selected.
+External products appear in the product switcher alongside internal products but navigate users to the specified URL when selected.  Unlike internal products, external products are defined directly in `docs.yml` using `href`—no standalone product `.yml` file is needed.
 
 To define an external product, add an item to the `products` list in `docs.yml` with an `href` instead of a `path`:
 
@@ -14,10 +14,10 @@ products:
     slug: api-docs
     subtitle: Complete API reference
 
-  - display-name: Dashboard
+  - display-name: Dashboard # External product
     href: https://dashboard.example.com
     icon: fa-solid fa-chart-line
     subtitle: Analytics and insights
 ```
 
-Visit the [product switching documentation](/learn/docs/navigation/products#link-to-external-products) to learn more.
+Visit the [product switching documentation](/learn/docs/configuration/products#define-your-products) to learn more.