backspace works

module02/ex00/main.c

@@ -104,7 +104,8 @@ void uart_tx(char c) {
 	UDR0 = (unsigned char) c;													// 20.11.1 : Put data into buffer, UDRn – USART I/O Data Register (read and write)
 }
 
-// screen /dev/ttyUSB0 115200
+// write Z on serial port, at a !Hz frequency
+// `screen /dev/ttyUSB0 115200`
 int main() {
 	uart_init();
 	while (1) {