asyncio doc: cleanup Hello World examples
diff --git a/Doc/library/asyncio-task.rst b/Doc/library/asyncio-task.rst
index e7c316d..8c4d790 100644
--- a/Doc/library/asyncio-task.rst
+++ b/Doc/library/asyncio-task.rst
@@ -98,8 +98,9 @@
.. seealso::
- :ref:`Hello World example using a callback <asyncio-hello-world-callback>`.
-
+ The :ref:`Hello World with a callback <asyncio-hello-world-callback>`
+ example uses a callback scheduled by the :meth:`BaseEventLoop.call_soon`
+ method.
Example: Chain coroutines
^^^^^^^^^^^^^^^^^^^^^^^^^