update changelog

Author: vincentsarago

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](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [0.6.0] - TBD
+## [0.6.0a0] - 2023-04-04
 
 ### Added
 
@@ -29,14 +29,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Add has_z function to Geometries (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/103)
 - Add optional bbox to geometries. (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/108)
-- Add support for nested GeometryCollection and a corresponding warning. (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/111) 
+- Add support for nested GeometryCollection and a corresponding warning. (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/111)
 
 ### Changed
 
 - Refactor and simplify WKT construction (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/97)
 - Support empty geometry coordinates (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/100)
 - Refactored `__geo_interface__` to be a Mixin which returns `self.dict` (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/105)
-- GeometryCollection containing a single geometry or geometries of only one type will now produce a warning. (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/111) 
+- GeometryCollection containing a single geometry or geometries of only one type will now produce a warning. (author @eseglem, https://github.com/developmentseed/geojson-pydantic/pull/111)
 
 ### Fixed
 
@@ -268,7 +268,8 @@ Although the type file was added in `0.2.0` it wasn't included in the distribute
 ### Added
 - Initial Release
 
-[unreleased]: https://github.com/developmentseed/geojson-pydantic/compare/0.5.0...HEAD
+[unreleased]: https://github.com/developmentseed/geojson-pydantic/compare/0.6.0a...HEAD
+[0.6.0a]: https://github.com/developmentseed/geojson-pydantic/compare/0.5.0...0.6.0a
 [0.5.0]: https://github.com/developmentseed/geojson-pydantic/compare/0.4.3...0.5.0
 [0.4.3]: https://github.com/developmentseed/geojson-pydantic/compare/0.4.2...0.4.3
 [0.4.2]: https://github.com/developmentseed/geojson-pydantic/compare/0.4.1...0.4.2