Revise CHANGELOG

Author: Taichi Yamakawa

CHANGELOG.md

@@ -7,14 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 [Unreleased]: https://github.com/lerna-stack/akka-entity-replication/compare/v2.1.0...master
 
+### Added
+- Add diagnostic logs
+  [PR#164](https://github.com/lerna-stack/akka-entity-replication/pull/164),
+  [PR#177](https://github.com/lerna-stack/akka-entity-replication/pull/177)
+- Add function extracting shard id from entity id to lerna.akka.entityreplication.typed.ClusterReplication
+  [PR#172](https://github.com/lerna-stack/akka-entity-replication/pull/172)
+
 ### Changed
 - Enhance leader's replication response handling [PR#160](https://github.com/lerna-stack/akka-entity-replication/pull/160)
 - Change event sourcing log level to debug
   [PR#163](https://github.com/lerna-stack/akka-entity-replication/pull/163)
-- Add diagnostic logging to CommitLogStoreActor
-  [PR#164](https://github.com/lerna-stack/akka-entity-replication/pull/164)
-- Add function extracting shard id from entity id to lerna.akka.entityreplication.typed.ClusterReplication
-  [PR#172](https://github.com/lerna-stack/akka-entity-replication/pull/172)
 
 ### Fixed
 - RaftActor might delete committed entries