docs: Update changelog

CHANGELOG.md

@@ -5,7 +5,7 @@ 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]
+## [2.1.0] - 2023-10-04
 
 ### Added
 
@@ -19,8 +19,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Update dependencies to their latest versions (#482)
 
-### Removed
-
 ## [2.0.1] - 2023-07-13
 
 ### Added
@@ -160,7 +158,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [1.0.0] - 2021-09-21
 
-[Unreleased]: https://github.com/esp-rs/espflash/compare/v2.0.1...HEAD
+[2.1.0]: https://github.com/esp-rs/espflash/compare/v2.0.1...v2.1.0
 [2.0.1]: https://github.com/esp-rs/espflash/compare/v2.0.0...v2.0.1
 [2.0.0]: https://github.com/esp-rs/espflash/compare/v2.0.0-rc.4...v2.0.0
 [2.0.0-rc.4]: https://github.com/esp-rs/espflash/compare/v2.0.0-rc.3...v2.0.0-rc.4