README.md : Update

README.md

@@ -1,5 +1,5 @@
 This is the main repository for the CML picadae hardware
 and a control files.
 
-- __kicad__ contains the keyboard and pedal schematics and printed circuit board layout.
-- __control__ contains the keyboard solenoid ATtiny85 firware, controller Arduino firmware and, Python control API and program.
+- [__kicad__](kicad/README.md) contains the keyboard and pedal schematics and printed circuit board layout.
+- [__control__](control/README.md) contains the keyboard solenoid ATtiny85 firware, controller Arduino firmware and, Python control API and program.