update keywords

effect_rectifier.h

@@ -24,8 +24,8 @@
  * THE SOFTWARE.
  */
 
-#ifndef effect_fade_h_
-#define effect_fade_h_
+#ifndef effect_rectifier_h_
+#define effect_rectifier_h_
 
 #include "Arduino.h"
 #include "AudioStream.h"

keywords.txt

@@ -59,6 +59,7 @@ AudioEffectMidSide	KEYWORD2
 AudioEffectWaveshaper	KEYWORD2
 AudioEffectGranular	KEYWORD2
 AudioEffectDigitalCombine	KEYWORD2
+AudioEffectRectifier	KEYWORD2
 AudioFilterBiquad	KEYWORD2
 AudioFilterFIR	KEYWORD2
 AudioFilterStateVariable	KEYWORD2