Bump version to v0.3.6.

CHANGELOG.md

@@ -10,7 +10,7 @@ The format is based on [Keep a Changelog], and this project adheres to
 [keep a changelog]: https://keepachangelog.com/en/1.0.0/
 [semantic versioning]: https://semver.org/spec/v2.0.0.html
 
-## [Unreleased]
+## [0.3.6] - 2023-03-06
 
 ### Fixed
 
@@ -92,6 +92,7 @@ The two most important changes in usage are:
 [0.3.3]: https://github.com/dogmatiq/ferrite/releases/tag/v0.3.3
 [0.3.4]: https://github.com/dogmatiq/ferrite/releases/tag/v0.3.4
 [0.3.5]: https://github.com/dogmatiq/ferrite/releases/tag/v0.3.5
+[0.3.6]: https://github.com/dogmatiq/ferrite/releases/tag/v0.3.6
 
 <!-- version template
 ## [0.0.1] - YYYY-MM-DD