bpo-33649: Add high-level APIs cheat-sheet (GH-9319)

diff --git a/Doc/library/asyncio-queue.rst b/Doc/library/asyncio-queue.rst
index fcad751..23d2f3c 100644
--- a/Doc/library/asyncio-queue.rst
+++ b/Doc/library/asyncio-queue.rst
@@ -140,6 +140,8 @@
 Examples
 ========
 
+.. _asyncio_example_queue_dist:
+
 Queues can be used to distribute workload between several
 concurrent tasks::