Add HITL operators to standard provider index docs (#60681)

Author: Lohith625

airflow-core/docs/tutorial/hitl.rst

@@ -190,3 +190,12 @@ Benefits and Common Use Cases
 
 HITL functionality is valuable in large language model (LLM) workflows, where human-provided guidance can be essential for achieving better results.
 It is also highly beneficial in enterprise data pipelines, where human validation can complement and enhance automated processes.
+
+See also
+--------
+
+* `Standard provider HITL operators documentation
+  <https://airflow.apache.org/docs/apache-airflow-providers-standard/stable/operators/hitl.html>`_
+
+* `HITL operators Python API reference
+  <https://airflow.apache.org/docs/apache-airflow-providers-standard/stable/_api/airflow/providers/standard/operators/hitl/index.html>`_

docs/spelling_wordlist.txt

@@ -831,6 +831,8 @@ healthjump
 heartrate
 heatmap
 Highcharts
+HITL
+hitl
 hivecmd
 hiveconf
 hiveconfs

providers/standard/docs/operators/hitl.rst

@@ -0,0 +1,44 @@
+ .. Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+ ..   http://www.apache.org/licenses/LICENSE-2.0
+
+ .. Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+
+Human in the Loop (HITL) Operators
+==================================
+
+Human-in-the-Loop (HITL) operators enable workflows where task execution
+can pause and wait for human input, approval, or intervention before
+continuing.
+
+These operators are part of the ``apache-airflow-providers-standard``
+package and are intended for modeling approval steps or manual decision
+points within automated pipelines.
+
+Available HITL operators
+------------------------
+
+The Standard provider includes Human-in-the-Loop (HITL) operators.
+For the complete and up-to-date list of available operators and their
+parameters, refer to the Python API documentation:
+
+`Python API reference <https://airflow.apache.org/docs/apache-airflow-providers-standard/stable/_api/airflow/providers/standard/operators/hitl/index.html>`_
+
+Usage guide
+-----------
+
+For an end-to-end guide on using HITL operators, including examples and
+recommended patterns, see the HITL tutorial:
+
+* `HITL tutorial <https://airflow.apache.org/docs/apache-airflow/stable/tutorial/hitl.html>`_