Updated to confirm ATmega32U2 on a custom board.

Compatible-Microcontrollers.md

@@ -4,8 +4,9 @@ This runs on:
 * AT90USB127 ([Atmel USBKEY](http://www.atmel.com/tools/AT90USBKEY.aspx))
 * ATmega168P with using [V-USB](http://www.obdev.at/products/vusb/index.html)
 * ATmega328P with using [V-USB](http://www.obdev.at/products/vusb/index.html)
+* ATmega32U2 (custom board)
 * AT90USB127, 646, 647 should work but not tested
-* ATmega32U2, AT90USB162 testing...
+* AT90USB162 testing...
 
 NOTE: To enable full features of firmware you'll need 32KB flash size.