instructions on how to build uracoli libs

Author: dthiele

hardware/pinoccio/avr/bootloaders/STK500RFR2/readme.txt

@@ -2,5 +2,6 @@
 integrate uracoli into bootloader:
  (1) fetch uracoli-src package http://uracoli.nongnu.org/download.html
  (2) extract to folder "uracoli-src"
- (3) rest is done by Atmel Studio Project
+ (3) build for board pinoccio: uracoli-src> make -C src pinccio
+ (4) Atmel Studio Project references to libs in folder /lib and /inc