clarify 0 and 180 as limit

Author: nkaaf

src/Servo.h

@@ -108,7 +108,7 @@ class Servo
   uint8_t attach(int pin);           // attach the given pin to the next free channel, sets pinMode, returns channel number or INVALID_SERVO if failure
   uint8_t attach(int pin, int min, int max); // as above but also sets min and max values for writes. 
   void detach();
-  void write(int value);             // if value is < 544 and desired arch is not nrf52, its treated as an angle, otherwise as pulse width in microseconds
+  void write(int value);             // if value is < 544 and desired arch is not nrf52, its treated as an angle between 0 and 180, where values higher than 180 are set to 180 and values less than 0 are set to 0; otherwise as pulse width in microseconds
   void writeMicroseconds(int value); // Write pulse width in microseconds 
   int read();                        // returns current pulse width as an angle between 0 and 180 degrees
   int readMicroseconds();            // returns current pulse width in microseconds for this servo (was read_us() in first release)