[ODM-12913] Add fj memory consumtion hint to release notes

Author: Oleg Kunitsyn

docs/home/release-notes.md

@@ -32,3 +32,17 @@
         repository: clickhouse/clickhouse-keeper
         tag: 25.8.4
       ```
+
+- Millions of Cells and `func-job`.
+    - If you're planning to load a lot of Cells expression data, meaning millions of cells, you may need to increase memory limits for the `func-job` service.
+
+      Example of configuration:
+
+      ```yaml
+      funcJob:
+        resources:
+          limits:
+            memory: 5Gi
+          requsts:
+            memory: 5Gi
+      ```