docs(CHANGELOG): update for v0.1.4

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.1.4] - 2023-10-20
+
+## Changed
+
+- [Better validation for tuples](https://github.com/CQCL/phir/pull/8)
+
 ## [0.1.3] - 2023-10-18
 
 ### Added
@@ -39,8 +45,9 @@ First release.
 - Pydantic model and JSON schema of the PHIR Specification.
 - `phir-cli` for validation against that model and pretty printing on the command line.
 
-[unreleased]: https://github.com/CQCL/phir/compare/v0.1.3...HEAD
 [0.1.0]: https://github.com/CQCL/phir/commits/v0.1.0
 [0.1.1]: https://github.com/CQCL/phir/compare/v0.1.0...v0.1.1
 [0.1.2]: https://github.com/CQCL/phir/compare/v0.1.1...v0.1.2
 [0.1.3]: https://github.com/CQCL/phir/compare/v0.1.2...v0.1.3
+[0.1.4]: https://github.com/CQCL/phir/compare/v0.1.3...v0.1.4
+[unreleased]: https://github.com/CQCL/phir/compare/v0.1.4...HEAD