Fix description

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Leandru Martin <122942864+leandrumartin@users.noreply.github.com>

Author: leandrumartin

pi4micronaut-utils/src/main/java/com/opensourcewithslu/outputdevices/PassiveBuzzerHelper.java

@@ -62,10 +62,9 @@ public void passiveBuzzerOff(){
     }
 
     /**
+     * Returns the current default frequency for the passive buzzer.
      *
-     * Logs the passiveBuzzerFreq to the console
-     *
-     * @return the current default frequency
+     * @return the current default frequency in Hz
      */
 
     //tag::method[]