use a link in CHANGELOG.md for SensitiveParameter

Author: NicolasCARPi

CHANGELOG.md

@@ -10,7 +10,7 @@ Version 3.x requires at least PHP 8.2.
 
 ## Other changes
 
-* The new PHP attribute SensitiveParameter was added to the code, to prevent accidental leak of secrets in stack traces.
+* The new PHP attribute [SensitiveParameter](https://www.php.net/manual/en/class.sensitiveparameter.php) was added to the code, to prevent accidental leak of secrets in stack traces.
 
 # Version 2.x