minor #17974 [Messenger] Fix the referencing of the redis transport in an explanation (danrot)

This PR was merged into the 5.4 branch.

Discussion
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[Messenger] Fix the referencing of the redis transport in an explanation

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This is just a minor fix, currently it says "see the Redis section above", although the Redis section comes after this reference.

Commits
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88c1924 Fix the referencing of the redis transport in an explanation

Author: javiereguiluz

messenger.rst

@@ -709,7 +709,7 @@ and ``user`` to the Unix user on your server.
 If you use the Redis Transport, note that each worker needs a unique consumer
 name to avoid the same message being handled by multiple workers. One way to
 achieve this is to set an environment variable in the Supervisor configuration
-file, which you can then refer to in ``messenger.yaml`` (see Redis section above):
+file, which you can then refer to in ``messenger.yaml`` (see Redis section below):
 
 .. code-block:: ini