Update "See Also" section of pandas/core/generic.py (pandas-dev#21550)

Author: wil

pandas/core/generic.py

@@ -5175,8 +5175,7 @@ def convert_objects(self, convert_dates=True, convert_numeric=False,
         --------
         pandas.to_datetime : Convert argument to datetime.
         pandas.to_timedelta : Convert argument to timedelta.
-        pandas.to_numeric : Return a fixed frequency timedelta index,
-            with day as the default.
+        pandas.to_numeric : Convert argument to numeric type.
 
         Returns
         -------
@@ -5210,7 +5209,7 @@ def infer_objects(self):
         --------
         pandas.to_datetime : Convert argument to datetime.
         pandas.to_timedelta : Convert argument to timedelta.
-        pandas.to_numeric : Convert argument to numeric typeR
+        pandas.to_numeric : Convert argument to numeric type.
 
         Returns
         -------