Typo in a comment on Servo.h

Author: madacol

src/Servo.h

@@ -78,7 +78,7 @@
 #define MIN_PULSE_WIDTH       544     // the shortest pulse sent to a servo  
 #define MAX_PULSE_WIDTH      2400     // the longest pulse sent to a servo 
 #define DEFAULT_PULSE_WIDTH  1500     // default pulse width when servo is attached
-#define REFRESH_INTERVAL    20000     // minumim time to refresh servos in microseconds 
+#define REFRESH_INTERVAL    20000     // minimum time to refresh servos in microseconds 
 
 #define SERVOS_PER_TIMER       12     // the maximum number of servos controlled by one timer 
 #define MAX_SERVOS   (_Nbr_16timers  * SERVOS_PER_TIMER)