docs: update changelog

Signed-off-by: QuentinN42 <quentin@lieumont.fr>
open-telemetry · Dec 16, 2023 · b7c5293 · b7c5293
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Add `Tracer.decorate` to allow decorating a function with a span
+  ([#3595](https://github.com/open-telemetry/opentelemetry-python/pull/3595))
+
 ## Version 1.22.0/0.43b0 (2023-12-14)
 
 - Prometheus exporter sanitize info metric