docs: change wrong number of next step
@@ -229,5 +229,5 @@ cargo run --example 04-routing-over-transport-two-hops-initiator
Note how the message is routed.
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-<hr><b>Next:</b> <a href="../05-secure-channel#readme">04. Secure Channel</a>
+<hr><b>Next:</b> <a href="../05-secure-channel#readme">05. Secure Channel</a>
</div>
