Update CHANGELOG.md

Author: oleibman

CHANGELOG.md

@@ -9,7 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Added
 
-- Nothing
+- Default Style Alignment Property (workaround for bug in non-Excel spreadsheet apps) [Issue #3918](https://github.com/PHPOffice/PhpSpreadsheet/issues/3918) [PR #3924](https://github.com/PHPOffice/PhpSpreadsheet/pull/3924)
 
 ### Changed
 
@@ -32,6 +32,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 - Fix issue with prepending zero in percentage [Issue #3920](https://github.com/PHPOffice/PhpSpreadsheet/issues/3920) [PR #3921](https://github.com/PHPOffice/PhpSpreadsheet/pull/3921)
 - Incorrect SUMPRODUCT Calculation [Issue #3909](https://github.com/PHPOffice/PhpSpreadsheet/issues/3909) [PR #3916](https://github.com/PHPOffice/PhpSpreadsheet/pull/3916)
 - Formula Misidentifying Text as Cell After Insertion/Deletion [Issue #3907](https://github.com/PHPOffice/PhpSpreadsheet/issues/3907) [PR #3915](https://github.com/PHPOffice/PhpSpreadsheet/pull/3915)
+- Unexpected Absolute Address in Xlsx Rels [Issue #3730](https://github.com/PHPOffice/PhpSpreadsheet/issues/3730) [PR #3923](https://github.com/PHPOffice/PhpSpreadsheet/pull/3923)
 
 ## 2.0.0 - 2024-01-04