Update CHANGELOG.md

CHANGELOG.md

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 ## [Unreleased]
 
+### Enhancements
+- **Javadoc Generation**: Improved automation and versioning of Javadoc generation (#6).
+- **GitHub Actions**: Improved handling of versioning in workflows, including `SNAPSHOT` tags based on release status (#10).
+- **README Updates**: Updated paths, contact email, and removed `withHTTPInfo` examples (#5).
+
+### Bug Fixes
+- **Documentation**: Enhanced examples in `api_doc.mustache` for API methods such as `getInstance`, `createInstance`, `deleteInstance`, and `updateInstance` (#9).
+
+### Changes
+- **`WithHttpInfo` Visibility Update**: Set `WithHttpInfo` methods to private (#8).
+
+### Removed/Deprecated
+- **Documentation**: Removed all `WithHttpInfo` method examples from the API documentation (#7).
+- **Generation**: Removed timestamp generation from SDK classes for consistency (#5).
+
+
 ## [0.0.2-ALPHA] - 2024-08-20
 
 ### Features