kicad/README.md,keyboard.png,pedal.png : Add images to the kicad readme.

kicad/README.md

 # Bill of materials
 
-## Power and Control 
+![Keyboard assembly](keyboard.png)
+
+## Keyboard Power and Control 
+
+These parts serve the entire keyboard solenoid assembly.
+
 Id   | Type            | Description          | Qty | Source   | Part Number
 -----|-----------------|----------------------|-----|----------|--------------------
 J3   | 6P Terminal     | Screw Terminal       |   2 | Mouser   | 651-1725698
 P2   | HDS800PS12      | 12V Power Supply     |   1 | Digikey  | 1470-2687-ND
 P3   | TXL 015-05S     | 5V Power Supply      |   1 | Digikey  | 1951-1325-ND
 M0   | Controller MCU  | Arduino Uno R3       |   1 | Digikey  | 1050-1024-ND
-     | 1/16 x 1/8 x 1/2| Rubber feet(pkg 100) |   1 | McMaster | 9753K11
+None | 1/16 x 1/8 x 1/2| Rubber feet(pkg 100) |   1 | McMaster | 9753K11
 
 ## Key Driver Board (11 channels per board) 
+
+There are 8 driver boards per keyboard solenoid assembly. Each board
+has 11 driver circuits.  
+
 Id   | Type            | Description         | Qty | Source   | Part Number
 -----|-----------------|---------------------|-----|----------|--------------------
 U1   | ATtiny85-20MU   | Microcontroller     |  11 | Mouser   | 556-ATTINY85-20PU
-     | 8DIP IC         | Socket              |  11 | Mouser   | 571-1-2199298-2
-     | 0.1uF           | Capacitor           |   1 | Digikey  | 399-14010-1-ND
+None | 8DIP IC         | Socket              |  11 | Mouser   | 571-1-2199298-2
+None | 0.1uF           | Capacitor           |   1 | Digikey  | 399-14010-1-ND
 R1-2 | 4.7k            | Resistor            |  22 | Mouser   | 293-4.7K-RC
 D1   | BYV32-200       | Diode               |  11 | Mouser   | BYV32-200GOS-ND
 D2   | SF52            | Rectifier           |  11 | Mouser   | 583-SF52-B
 J2   | 6P Female .1    | Pin Terminal        |   1 | Digikey  | H123900-ND
 
 ## Damper Pedal Driver Board
+
+![Pedal driver assembly](keyboard.png)
+
+
 Id   | Type            | Description         | Qty | Source   | Part Number
 -----|-----------------|---------------------|-----|----------|--------------------
 R1-4 | 180 ohm         | Resistor            |   4 |  Mouser  | 660-MF1/2LCT52R181G
 D1   | Bridge Rectifier| 100V 25A            |   1 |  Newark  | GBPC2501W
 D2-3 | STTH30R061PI    | Diode               |   1 |  Mouser  | 512-RURP3060
 L1   | Push Solenoid   | 24 Volt             |   1 |  Laukhuff| 301010
-T1   | Power Transforme|                     |   1 |  Digikey | 595-1961-ND
+T1   | Transformer     |                     |   1 |  Digikey | 595-1961-ND