Update SoftwareSerial.cpp

Author: Bradley Luke Totaro

libraries/SoftwareSerial/src/SoftwareSerial.cpp

@@ -270,7 +270,7 @@ void SoftwareSerial::setTX(uint8_t tx)
 {
   // First write, then set output. If we do this the other way around,
   // the pin would be output low for a short while before switching to
-  // output hihg. Now, it is input with pullup for a short while, which
+  // output high. Now, it is input with pullup for a short while, which
   // is fine. With inverse logic, either order is fine.
   digitalWrite(tx, _inverse_logic ? LOW : HIGH);
   pinMode(tx, OUTPUT);