[Docs] add src code ref for offloading size limitation

docs/user_guide/concepts/main_concepts/data_management.rst

@@ -19,6 +19,13 @@ In Flyte, data is categorized into metadata and raw data to optimize data handli
     Flyte stores raw data in an object store (e.g., S3), uploading it on first use and passing only a reference thereafter.
     Tasks can then access this data via Flyte’s automated download or streaming, enabling efficient access to large datasets without needing to transfer full copies.
 
+*Source code reference for auto-offloading value sizes limitation:*
+
+.. literalinclude:: https://github.com/flyteorg/static-resources/blob/ddec386ab74897e3c09d89fdaf305e77a2ecc52c/flyte/flytepropeller/pkg/controller/config/config.go
+   :caption: flytepropeller/pkg/controller/config/config.go
+   :language: go
+   :lines: 184-192
+
 Data Flow and Security
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