Fix CHANGELOG

Author: hecrj

CHANGELOG.md

@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [0.21.0] - 2023-09-08
 ### Changed
-- Updated `wgpu` to `0.17`. [#101]
+- Updated `wgpu` to `0.17`. [#104]
 
 [#104]: https://github.com/hecrj/wgpu_glyph/pull/104
 
@@ -216,7 +216,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - First release! :tada:
 
 
-[Unreleased]: https://github.com/hecrj/wgpu_glyph/compare/0.20.0...HEAD
+[Unreleased]: https://github.com/hecrj/wgpu_glyph/compare/0.21.0...HEAD
+[0.21.0]: https://github.com/hecrj/wgpu_glyph/compare/0.20.0...0.21.0
 [0.20.0]: https://github.com/hecrj/wgpu_glyph/compare/0.19.0...0.20.0
 [0.19.0]: https://github.com/hecrj/wgpu_glyph/compare/0.18.0...0.19.0
 [0.18.0]: https://github.com/hecrj/wgpu_glyph/compare/0.17.0...0.18.0