bpo-33649: Refresh Tasks and Futures pages (#9314)

* bpo-33649: Refresh Tasks and Futures pages

* Fixes

* Fix markup
diff --git a/Doc/library/asyncio-eventloop.rst b/Doc/library/asyncio-eventloop.rst
index baa5234..e1b47d2 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -1429,7 +1429,7 @@
 
 .. seealso::
 
-   A similar :ref:`Hello World <asyncio-hello-world-coroutine>`
+   A similar :ref:`Hello World <coroutine>`
    example created with a coroutine and the :func:`run` function.