changelog: refer to cookie guide

Author: aviau

docs/changelog/overview.mdx

@@ -19,7 +19,9 @@ Release notes for the Flare Platform can be found on the [product documentation
   The [cookies search endpoint](/api-reference/leaksdb/endpoints/post-cookies-search) now
   returns an `imported_at` timestamp that indicates when the cookie was imported to Flare's
   database. It also has a new `imported_after` filter that allows for retrieving cookies
-  that were imported after a given timestamp.
+  that were imported after a given timestamp. The
+  [Cookie Monitoring Guide <Icon icon="book" size={16} />](/guides/cookie-monitoring).
+  was updated with an example usage.
 </Update>
 
 <Update label="2024-10-22" description="Python SDK - v0.1.25">