prep for release

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [v0.2.1]
 - Support more slice types for server and client options
 - CPU and heap profiling bound to the fx.App lifecycle
 - Easy configuration of net/http/pprof handlers for injected gorilla/mux routers
@@ -65,7 +67,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## v0.1.0
 - Initial creation
 
-[Unreleased]: https:/xmidt-org/arrange/compare/v0.2.0..HEAD
+[Unreleased]: https:/xmidt-org/arrange/compare/v0.2.1..HEAD
+[v0.2.1]: https:/xmidt-org/arrange/compare/v0.2.0...v0.2.1
 [v0.2.0]: https:/xmidt-org/arrange/compare/v0.1.9...v0.2.0
 [v0.1.9]: https:/xmidt-org/arrange/compare/v0.1.8...v0.1.9
 [v0.1.8]: https:/xmidt-org/arrange/compare/v0.1.7...v0.1.8