Merge PR #566 "Standardize link text " from per1234

Standardize link text

Author: robsoncouto

Language/Functions/Advanced IO/tone.adoc

@@ -77,10 +77,11 @@ If you want to play different pitches on multiple pins, you need to call `noTone
 * #LANGUAGE# link:../../analog-io/analogwrite[analogWrite()]
 
 [role="example"]
-* #EXAMPLE# https://www.arduino.cc/en/Tutorial/toneMelody[Tone^]
-* #EXAMPLE# http://arduino.cc/en/Tutorial/tonePitchFollower[Pitch follower^]
-* #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/Tone[Tone Melody^]
+* #EXAMPLE# http://arduino.cc/en/Tutorial/tonePitchFollower[Pitch Follower^]
+* #EXAMPLE# http://arduino.cc/en/Tutorial/Tone3[Tone Keyboard^]
+* #EXAMPLE# http://arduino.cc/en/Tutorial/Tone4[Tone Multiple^]
 * #EXAMPLE# http://arduino.cc/en/Tutorial/PWM[PWM^]
 
 --

Language/Functions/Communication/Serial/serialEvent.adoc

@@ -80,7 +80,7 @@ Nothing
 === See also
 
 [role="example"]
-* #EXAMPLE# http://arduino.cc/en/Tutorial/SerialEvent[SerialEvent Tutorial^]
+* #EXAMPLE# http://arduino.cc/en/Tutorial/SerialEvent[Serial Event Tutorial^]
 
 [role="language"]
 * #LANGUAGE# link:../begin[begin()]