docs: add section titles for DeteteBatch

Author: kenjis

user_guide_src/source/database/query_builder.rst

@@ -1176,11 +1176,17 @@ method, or ``emptyTable()``.
 
 .. _delete-batch:
 
+DeleteBatch
+===========
+
 $builder->deleteBatch()
 -----------------------
 
 .. versionadded:: 4.3.0
 
+Delete from Data
+^^^^^^^^^^^^^^^^
+
 Generates a batch **DELETE** statement based on a set of data.
 
 .. literalinclude:: query_builder/118.php
@@ -1189,6 +1195,9 @@ This method may be especially useful when deleting data in a table with a compos
 
 .. note:: SQLite does not support the use of ``where()``.
 
+Delete from a Query
+^^^^^^^^^^^^^^^^^^^
+
 You can also delete from a query:
 
 .. literalinclude:: query_builder/119.php