Release Notes: January 2022

Change-Id: Ib102c0f3dcd59ac3a0b121d21aa415a87dfc8f04
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/85863
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Chad Norvell <chadnorvell@google.com>
diff --git a/pw_rpc/docs.rst b/pw_rpc/docs.rst
index cbce407..25554f0 100644
--- a/pw_rpc/docs.rst
+++ b/pw_rpc/docs.rst
@@ -1120,6 +1120,7 @@
 Users of ``pw_rpc`` must implement the :cpp:class:`pw::rpc::ChannelOutput`
 interface.
 
+.. _module-pw_rpc-ChannelOutput:
 .. cpp:class:: pw::rpc::ChannelOutput
 
   ``pw_rpc`` endpoints use :cpp:class:`ChannelOutput` instances to send packets.