Update README.md

README.md

@@ -307,7 +307,8 @@ Then used from within python:
 
 To run `frame2seq` on each MIP target, 
 
-    >>> for row in dataset_models:
+    >>> for pdb in dataset_models.data['train'].column('pdb'):
+      pdb.str
       print(f"Predicting sequences for id = {row$id}")
       pdb = row$pdb