Updated changelog (#49)

* Updated changelog

CHANGELOG.md

@@ -1,7 +1,24 @@
 # Changelog
 
+## v.0.2.4
+### What's Changed
+* Bump up the version to 0.2.4 by @samet-akcay in https://github.com/openvinotoolkit/anomalib/pull/45
+* fix heatmap color scheme by @djdameln in https://github.com/openvinotoolkit/anomalib/pull/44
+
+**Full Changelog**: https://github.com/openvinotoolkit/anomalib/compare/v.0.2.3...v.0.2.4
+
+## v.0.2.3
+### What's Changed
+* Address docs build failing issue by @ashwinvaidya17 in https://github.com/openvinotoolkit/anomalib/pull/39
+* Fix docs pipeline 📄 by @ashwinvaidya17 in https://github.com/openvinotoolkit/anomalib/pull/41
+* Feature/dick/anomaly score normalization by @djdameln in https://github.com/openvinotoolkit/anomalib/pull/35
+* Shuffle train dataloader by @samet-akcay in https://github.com/openvinotoolkit/anomalib/pull/42
+
+
+**Full Changelog**: https://github.com/openvinotoolkit/anomalib/compare/v0.2.2...v.0.2.3
+
 ## v0.2.0 Pre-release (2021-12-15)
-## What's Changed
+### What's Changed
 * Address compatibility issues with OTE, that are caused by the legacy code. by @samet-akcay in [#24](https://github.com/openvinotoolkit/anomalib/pull/24)
 * Initial docs string by @ashwinvaidya17 in [#9](https://github.com/openvinotoolkit/anomalib/pull/9)
 * Load model did not work correctly as DFMModel did not inherit by @ashwinvaidya17 in [#5](https://github.com/openvinotoolkit/anomalib/pull/5)
@@ -12,8 +29,9 @@
 * Add FPS counter to `TimerCallback` by @ashwinvaidya17 in [#12](https://github.com/openvinotoolkit/anomalib/pull/12)
 
 
-## New Contributors
-* @samet-akcay made their first contribution in [#8](https://github.com/openvinotoolkit/anomalib/pull/8)
-* @djdameln made their first contribution in [#7](https://github.com/openvinotoolkit/anomalib/pull/7)
+## Contributors
+* @ashwinvaidya17
+* @djdameln
+* @samet-akcay
 
 **Full Changelog**: https://github.com/openvinotoolkit/anomalib/commits/v0.2.0