update for v0.3.0

Author: nerdralph

README.md

@@ -5,18 +5,18 @@ I am writing this core from scratch, with code size and efficiency as the main g
 
 
 ## Development Status
-Work in progress as of spring 2020.
-
-Several of the most commonly used functions are implemented as of v0.2. Support for Serial.print is planned for v0.3.
+v 0.3.0 includes [debugSerial](https://github.com/nerdralph/debugSerial), for basic serial output supporting the most common [Serial.print()](https://www.arduino.cc/reference/en/language/functions/communication/serial/print) data types.
 
 ## Supported Functions
 * [analogRead()](https://www.arduino.cc/en/Reference/AnalogRead)
+* [analogReference()](https://www.arduino.cc/en/Reference/AnalogReference)
 * [analogWrite()](https://www.arduino.cc/en/Reference/AnalogWrite)
 * [delay()](https://www.arduino.cc/en/Reference/Delay)
 * [delayMicroseconds()](https://www.arduino.cc/en/Reference/DelayMicroseconds)   *wrapper for _delay_us()*
 * [digitalRead()](https://www.arduino.cc/en/Reference/DigitalRead)
 * [digitalWrite()](https://www.arduino.cc/en/Reference/DigitalWrite)
 * [millis()](https://www.arduino.cc/en/Reference/Millis)   *Watchdog timer based. Will increase with steps of 16*
+* [pinMode()](https://www.arduino.cc/en/Reference/PinMode)
 * [shiftIn()](https://www.arduino.cc/en/Reference/ShiftIn)
 * [shiftOut()](https://www.arduino.cc/en/Reference/ShiftOut)