Update README.md

README.md

@@ -1,4 +1,4 @@
-## Open Theremin V3 with MIDI interface control software V2.6 for Arduino UNO
+## Open Theremin V3 with MIDI interface control software V2.7 for Arduino UNO
 (For Open Theremin V4 with MIDI, follow this link: https://github.com/MrDham/OpenTheremin_V4_with_MIDI)
 
 
@@ -112,6 +112,8 @@ Let's consider a Fade-in / Picth Variation / Fade-out sequence (I use right hand
 
 Select a Parameter and move "Parameter's Value" to change corresponding setting. 
 
+While you rotate the pots, both LEDs toggles (OFF/ON) every steps to give you some angular feedback before going back to PLAY/MUTE Status.
+
 The picture at https://github.com/MrDham/OpenTheremin_V3_with_MIDI/blob/master/MIDI%20Open%20Theremin%20V3%20HMI.bmp gives an example of possible HMI: on "Value" pot, red lines have 4 positions, grey lines have 5 positions and yellow lines have 8 positions. On "Parameter" pot you see coloured lines indicating which colour to follow for the "Value" pot. 
 
 The Quick Guide at https://github.com/MrDham/OpenTheremin_V3_with_MIDI/blob/master/Quick%20guide%20open%20theremin%20midi.bmp works well with this HMI. Print it on a portrait A4 sheet of paper, plastify it and take it with your theremin everywhere you go...