Update autoPyTorch/utils/implementations.py

Co-authored-by: Ravin Kohli <13005107+ravinkohli@users.noreply.github.com>

Author: franchuterivera

autoPyTorch/utils/implementations.py

@@ -69,7 +69,7 @@ def get_properties() -> Dict[str, Any]:
 
 class MinorityCoalescing(BaseEstimator, TransformerMixin):
     """ Group together categories which occurence is less than a specified
-    minimum fraction. Coalesced categories get index of one.
+    minimum fraction. Coalesced categories are set to -2.
     """
 
     def __init__(self, minimum_fraction: Optional[float] = None):