chore: update changelog for v0.3.0 release

CHANGELOG.md

@@ -7,6 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.0]
+
+### Added
+
+* Support for WASM files in https://github.com/CQCL/pytket-phir/pull/77
+* Support for bitwise operations in https://github.com/CQCL/pytket-phir/pull/94
+
+### Fixed
+
+* sharder: issue with classical ordering in https://github.com/CQCL/pytket-phir/pull/96
+
 ## [0.2.1]
 
 ### Added
@@ -60,6 +71,7 @@ First release.
 [0.1.2]: https://github.com/CQCL/pytket-phir/compare/v0.1.1...v0.1.2
 [0.2.0]: https://github.com/CQCL/pytket-phir/compare/v0.1.2...v0.2.0
 [0.2.1]: https://github.com/CQCL/pytket-phir/compare/v0.2.0...v0.2.1
-[unreleased]: https://github.com/CQCL/pytket-phir/compare/v0.2.1...HEAD
+[0.3.0]: https://github.com/CQCL/pytket-phir/compare/v0.2.1...v0.3.0
+[unreleased]: https://github.com/CQCL/pytket-phir/compare/v0.3.0...HEAD
 
 <!-- markdownlint-configure-file {"MD024": {"siblings_only" : true}, "MD034": false} -->