Fix build errors

Author: shuangela

source/crud/query.txt

@@ -26,7 +26,7 @@ Query Documents
 - :ref:`kotlin-sync-find`
 - :ref:`kotlin-sync-specify-documents-to-return`
 - :ref:`kotlin-sync-project`
-- :ref:`kotlin-sync-specify-a-query`
+- :ref:`kotlin-sync-specify-query`
 - :ref:`kotlin-sync-count`
 - :ref:`kotlin-sync-distinct`
 - :ref:`kotlin-sync-cursors`

source/crud/query/geospatial.txt

@@ -4,19 +4,23 @@
 Custom Types
 ============
 
+.. contents:: On this page
+   :local:
+   :backlinks: none
+   :depth: 2
+   :class: singlecol
+
 .. facet::
    :name: genre
    :values: reference
 
 .. meta::
-   :keywords: bson, uuid, date, time 
-   :description: Learn how to use the Kotlin Sync driver to encode and decode custom
-   types, including defining type codecs, using type registries, and implementing fallback
-   encoders.
+   :description: Learn how to use the Kotlin Sync driver to encode and decode custom types, including defining type codecs, using type registries, and implementing fallback encoders.
+   :keywords: bson, uuid, date, time
 
 .. toctree::
    :titlesonly:
    :maxdepth: 1
 
-   Serialization </data-formats/custom-types/serialization>
-   Type Codecs </data-formats/custom-types/codecs>
+   Serialization </data-formats/serialization>
+   Type Codecs </data-formats/codecs>