fix doc example

Author: topper-123

doc/source/user_guide/advanced.rst

@@ -991,7 +991,7 @@ NumericIndex
 
    index = pd.NumericIndex([1, 2, 4, 5], dtype="int8")
    index
-   ser = pd.Series(range(5), index=index)
+   ser = pd.Series(range(4), index=index)
    ser
 
 ``NumericIndex`` works the same way as the existing ``Int64Index``, ``Float64Index`` and

doc/source/whatsnew/v1.4.0.rst

@@ -61,7 +61,7 @@ Instead if you want to use a ``NumericIndex``, you should do:
 In Pandas 2.0, :class:`NumericIndex` will become the default numeric index type and
 ``Int64Index``, ``UInt64Index`` and ``Float64Index`` will be removed.
 
-See :ref:`here <advanced.numericindex>` for more.
+See :ref:`here <indexing.numericindex>` for more.
 
 .. _whatsnew_140.enhancements.enhancement2: