DOC: Fix autosummary reference to pandas.CategoricalIndex for Sphinx build

Author: chaitanyakumar-d

doc/source/reference/indexing.rst

@@ -179,7 +179,6 @@ Numeric Index
 .. _api.categoricalindex:
 
 CategoricalIndex
-----------------
 .. autosummary::
    :toctree: api/
    :template: autosummary/class_without_autosummary.rst
@@ -191,25 +190,25 @@ Categorical components
 .. autosummary::
    :toctree: api/
 
-   CategoricalIndex.codes
-   CategoricalIndex.categories
-   CategoricalIndex.ordered
-   CategoricalIndex.rename_categories
-   CategoricalIndex.reorder_categories
-   CategoricalIndex.add_categories
-   CategoricalIndex.remove_categories
-   CategoricalIndex.remove_unused_categories
-   CategoricalIndex.set_categories
-   CategoricalIndex.as_ordered
-   CategoricalIndex.as_unordered
+   pandas.CategoricalIndex.codes
+   pandas.CategoricalIndex.categories
+   pandas.CategoricalIndex.ordered
+   pandas.CategoricalIndex.rename_categories
+   pandas.CategoricalIndex.reorder_categories
+   pandas.CategoricalIndex.add_categories
+   pandas.CategoricalIndex.remove_categories
+   pandas.CategoricalIndex.remove_unused_categories
+   pandas.CategoricalIndex.set_categories
+   pandas.CategoricalIndex.as_ordered
+   pandas.CategoricalIndex.as_unordered
 
 Modifying and computations
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
 .. autosummary::
    :toctree: api/
 
-   CategoricalIndex.map
-   CategoricalIndex.equals
+   pandas.CategoricalIndex.map
+   pandas.CategoricalIndex.equals
 
 .. _api.intervalindex: