Update CHANGELOG.md

Author: kokhinmaungwin

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.0.1] - 2025-12-15
+### Added
+- Initial release of BroCodeBox
+- Basic syntax highlighting for JS
+- Line numbers and optional highlight lines
+- Copy and download buttons
+- VSCode style dark theme
+- Self-contained single JS file
+  
 ## [1.0.0] - 2025-12-15
 ### Added
 - Initial release of BroCodeBox