Update CHANGELOG.md

Author: oleibman

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 - Add Dynamic valueBinder Property to Spreadsheet and Readers. [Issue #1395](https://github.com/PHPOffice/PhpSpreadsheet/issues/1395) [PR #4185](https://github.com/PHPOffice/PhpSpreadsheet/pull/4185)
 - Allow Omitting Chart Border. [Issue #562](https://github.com/PHPOffice/PhpSpreadsheet/issues/562) [PR #4188](https://github.com/PHPOffice/PhpSpreadsheet/pull/4188)
+- Method to Test Whether Csv Will Be Affected by Php0. [PR #4189](https://github.com/PHPOffice/PhpSpreadsheet/pull/4189)
 
 ### Changed