Update after rerun the check

Author: zslsally

pandas/core/dtypes/concat.py

@@ -190,7 +190,7 @@ def union_categoricals(
     Returns
     -------
     Categorical
-        The union of categories being combined
+        The union of categories being combined.
 
     Raises
     ------
@@ -202,16 +202,16 @@ def union_categoricals(
     ValueError
         Empty list of categoricals passed
 
-    Notes
-    -----
-    To learn more about categories, see `link
-    <https://pandas.pydata.org/pandas-docs/stable/user_guide/categorical.html#unioning>`__
-
     See Also
     --------
     CategoricalDtype : Type for categorical data with the categories and orderedness.
     Categorical : Represent a categorical variable in classic R / S-plus fashion.
 
+    Notes
+    -----
+    To learn more about categories, see `link
+    <https://pandas.pydata.org/pandas-docs/stable/user_guide/categorical.html#unioning>`__
+
     Examples
     --------
     If you want to combine categoricals that do not necessarily have