fix typo

bits_ir_receiver.cpp

 #include "bits_ir_receiver.h"
 
-BitsIrReceiver::BitsIrReceiver(int aPin) {
-    IRrecv ir_reciver(aPin);
+BitsIrReceiver::BitsIrReceiver(int pin) {
+    IRrecv ir_receiver(aPin);
 }
 
 void BitsIrReceiver::begin() {

bits_ir_receiver.h

@@ -34,7 +34,7 @@
 class BitsIrReceiver
 {
 public:
-    BitsIrReceiver(uint8_t aPin);
+    BitsIrReceiver(uint8_t pin);
     void begin();
     uint8_t receive_command();