Update CHANGELOG.md

Author: reijnnn

CHANGELOG.md

@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 - Support writing to streams in all writers [#1292](https://github.com/PHPOffice/PhpSpreadsheet/issues/1292)
 - Support CSV files with data wrapping a lot of lines [#1468](https://github.com/PHPOffice/PhpSpreadsheet/pull/1468)
-- Support protection of worksheet by a specific hash algorithm
+- Support protection of worksheet by a specific hash algorithm [#1485](https://github.com/PHPOffice/PhpSpreadsheet/pull/1485)
 
 ### Fixed