Update links to tone tutorials

The tone tutorial links use outdated URLs that must redirect to the current URLs. It's better to point the links directly to the correct URL.

Author: per1234

Language/Functions/Advanced IO/tone.adoc

@@ -77,10 +77,10 @@ If you want to play different pitches on multiple pins, you need to call `noTone
 * #LANGUAGE# link:../../analog-io/analogwrite[analogWrite()]
 
 [role="example"]
-* #EXAMPLE# http://arduino.cc/en/Tutorial/Tone[Tone^]
+* #EXAMPLE# https://www.arduino.cc/en/Tutorial/toneMelody[Tone^]
 * #EXAMPLE# http://arduino.cc/en/Tutorial/tonePitchFollower[Pitch follower^]
-* #EXAMPLE# http://arduino.cc/en/Tutorial/Tone3[Simple Keyboard^]
-* #EXAMPLE# http://arduino.cc/en/Tutorial/Tone4[multiple tones^]
+* #EXAMPLE# https://www.arduino.cc/en/Tutorial/toneKeyboard[Simple Keyboard^]
+* #EXAMPLE# https://www.arduino.cc/en/Tutorial/toneMultiple[multiple tones^]
 * #EXAMPLE# http://arduino.cc/en/Tutorial/PWM[PWM^]
 
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