Update README.md

README.md

@@ -184,7 +184,7 @@ then load, featurize, split, fit, and evaluate the a catboost model
     model = load_model_from_dict({
         "name": "cat_boost_classifier",
         "config": {
-            "x_features": ['smiles::morgan', 'smiles::maccs_rdkit'],
+            "x_features": ['Smiles::morgan', 'Smiles::maccs_rdkit'],
             "y_features": ['Class'],
         }})