Update changelog

Author: shahar4499

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).
 
+## [0.3.5]
+
+### Added
+- 🚀 Add configurable HTTP header forwarding (#181)
+
+### Fixed
+- 🐛 Fix a bug with handling FastAPI `root_path` parameter (#163)
+
 ## [0.3.4]
 
 ### Fixed