Move the entry in CHANGELOG to Unreleased section

Author: shalevr

CHANGELOG.md

@@ -6,6 +6,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased](https://github.com/open-telemetry/opentelemetry-python/compare/v1.13.0-0.34b0...HEAD)
+- Add metric instrumentation for tornado
+  ([#1252](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1252))
+
 
 ### Added
 
@@ -74,8 +77,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#1197](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1197))
 - Add metric instumentation for flask
   ([#1186](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1186))
-- Add metric instrumentation for tornado
-  ([#1252](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1252))
 - Add a test for asgi using NoOpTracerProvider
   ([#1367](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/1367))