Add README.md

README.md

@@ -0,0 +1,22 @@
+[![Reseases](https://img.shields.io/github/tag/elfmimi/ProMicro-AVRISP-MKII.svg)](../../releases)
+# ProMicro as AVRISP-mkII (fork of [lufa](https://github.com/abcminiuser/lufa))
+## Building AVRISP-mkII for ProMicro (ATmega32U4) made easy
+
+This is a fork of lufa to make it easy for anyone to build only one of it's subprojects, namely AVRISP-MKII.
+
+## How to build
+
+`git clone --recursive https://github.com/elfmimi/ProMicro-AVRISP-mkII.git`\
+`cd ProMicro-AVRISP-mkII`\
+`make`
+
+You'll need avr toolchain.\
+In case of Debian/Ubuntu `apt install gcc-avr avr-libc make`
+
+For Windows, download the binary distributed by Microchip.\
+https://www.microchip.com/en-us/tools-resources/develop/microchip-studio/gcc-compilers \
+You'll also need gnu make command which is found in MSYS2/MinGW or Cygwin.
+
+## License
+
+It is released under modified MIT license as so declared in lufa's README.txt .