Fix get_topic_tree_params typo

Author: lukehinds

examples/README.md

@@ -140,7 +140,7 @@ dataset.save("output.jsonl")
 config = DeepFabricConfig.from_yaml("config.yaml")
 
 # Use configuration parameters
-tree_params = config.get_tree_params()
+tree_params = config.get_topic_tree_params()
 engine_params = config.get_engine_params()
 dataset_config = config.get_dataset_config()
 ```

tests/integration/test_pipeline_integration.py

@@ -76,7 +76,7 @@ def test_config_based_pipeline(self, test_config_path, temp_output_dir):
         dataset_path = temp_output_dir / "config_dataset.jsonl"
 
         # Step 1: Create tree from config
-        tree_params = config.get_tree_params()  # type: ignore
+        tree_params = config.get_topic_tree_params()  # type: ignore
         tree = Tree(**tree_params)
         list(tree.build())
         tree.save(str(tree_path))