switched to from ms based to internal ppqn clock

README.MD

@@ -1,8 +1,17 @@
+Features:
+- 6 output channels
+- Master BPM
+- Separate divider per chennel
+
 TODO:
+- Add multipliers
 - Add min and max values
 - External clock
 - Switch to U8G2 for screen
 - Save state to EEPROM when stopped
+- swing
+- long-press encoder for settings (input mode, pulse length)
+- analogue input for modulations
 
 Timer library available here
 https://github.com/PaulStoffregen/FlexiTimer2