Fix typo in index.rst (#40245)

docs/apache-airflow/core-concepts/executor/index.rst

@@ -113,7 +113,7 @@ The following methods aren't required to override to have a functional Airflow e
 * ``end``: The Airflow scheduler (and backfill) job will call this method as it is tearing down. Any synchronous cleanup required to finish running jobs should be done here.
 * ``terminate``: More forcefully stop the executor, even killing/stopping in-flight tasks instead of synchronously waiting for completion.
 * ``cleanup_stuck_queued_tasks``: If tasks are stuck in the queued state for longer than ``task_queued_timeout`` then they are collected by the scheduler and provided to the executor to have an opportunity to handle them (perform any graceful cleanup/teardown) via this method and return the Task Instances for a warning message displayed to users.
-* ``try_adopt_task_instances``: Tasks that have been abandoned (e.g. from a scheduler job that died) are provided to the executor to adopt or otherwise handle them via this method. Any tasks that cannot be adopted (by default the BaseExector assumes all cannot be adopted) should be returned.
+* ``try_adopt_task_instances``: Tasks that have been abandoned (e.g. from a scheduler job that died) are provided to the executor to adopt or otherwise handle them via this method. Any tasks that cannot be adopted (by default the BaseExecutor assumes all cannot be adopted) should be returned.
 * ``get_cli_commands``: Executors may vend CLI commands to users by implementing this method, see the `CLI`_ section below for more details.
 * ``get_task_log``: Executors may vend log messages to Airflow task logs by implementing this method, see the `Logging`_ section below for more details.