Update changelog

CHANGELOG.md

@@ -1,5 +1,14 @@
 # `simple_clustering` changelog
 
+## Version 0.2.0 - 2023-07
+Updated the color-handling crate, `palette`, from `0.6` to `0.7`. Users will
+need to change from using `Pixel::from_raw_slice` to
+`palette::cast::from_component_slice` for preparing the input image buffer.
+
+Consult the [documentation] or `lib.rs` file for examples.
+
+[#3][3] - Upgrade dependencies, update CI/CD workflows, bump to 0.2.0
+
 ## Version 0.1.1 - 2023-01
 Improved SLIC calculation speed by ~15-20% after refactoring calculation loop.
 
@@ -8,4 +17,6 @@ Improved SLIC calculation speed by ~15-20% after refactoring calculation loop.
 ## Version 0.1.0 - 2022-04
 - Initial Commit
 
+[documentation]: https://docs.rs/simple_clustering
 [1]: https://github.com/okaneco/simple_clustering/pull/1
+[3]: https://github.com/okaneco/simple_clustering/pull/3