Update README.md

README.md

@@ -50,6 +50,7 @@ Source data used to create the processed FeatureScript representation.
 | `featurescript_raw.zip` | Unprocessed FeatureScript programs. |
 | `sketch_raw.zip` | Sketch metadata extracted from FeatureScript feature trees. |
 | `step_abc.zip` | STEP files extracted from the ABC dataset, used in both training and evaluation. |
+| `stl_abc.zip` | STL files converted from `step_abc.zip`, used in both training and evaluation. |
 | `multiview_images_abc.zip` | Multi-view images rendered from `step_abc.zip`, used in both training and evaluation. |
 
 ### `test_data/` — Evaluation Benchmarks