Update changelog

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 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
+
+### Added
+
+- Added an index for `id` to the account database table
+- Added indexes for `dataSource` and `date` to the market data database table
+- Added an index for `accountId` to the order database table
+
 ## 2.53.1 - 2024-02-18
 
 ### Added