Update README.md

Add info about what does MIDI in description.

README.md

@@ -9,7 +9,7 @@ Urs also made a very clear presentation of this MIDI feature on his website: htt
 ### Don't click on the files!
 Click on the "clone or download" Button to the right. Then unpack the archive.
 
-### Open Source Theremin based on the Arduino Platform
+### Open Source Theremin based on the Arduino Platform + MIDI communication
 
 Open.Theremin is an arduino shield to build the legendary music instrument invented by Leon Theremin back in 1920. The theremin is played with two antennas, one to control the pitch and one for volume. The electronic shield with two ports to connect those antennas comprises two heterodyne oscillators to measure the distance of the hand to the antenna when playing the instrument. The resulting signal is fed into the arduino. After linearization and filtering the arduino generates the instruments sound that is then played through a high quality digital analog audio converter on the board. The characteristics of the sound can be determined by a wave table on the arduino.
 
@@ -17,6 +17,8 @@ For more info on the open source project and on availability of ready made shiel
 
 http://www.gaudi.ch/OpenTheremin/
 
+This githup repository provides the code to add a MIDI interface to the Open Theremin V3 so as you can connect it to your favourite synthesizer. 
+
 ### Installation
 1. Open up the Arduino IDE
 2. Open the File "Open_Theremin_V3.ino"