Note minimum board and battery requirements

Author: RealOrangeOne

docs/kit/index.md

@@ -9,3 +9,7 @@ Your kit consists of 5 main "boards":
 | [Motor Board](./motor-board.md) | [Power Board](./power-board.md) | [Servo Board](./servo-board.md) | [Arduino](./arduino.md) | [Raspberry Pi](./pi.md) |
 |---|---|---|---|---|
 | ![Motor Board](../assets/img/kit/mcv4b.png) | ![Power Board](../assets/img/kit/pbv4.png) | ![Servo Board](../assets/img/kit/sbv4.png) | ![Arduino](../assets/img/kit/arduino_headers.png) | ![Pi](../assets/img/kit/pi.jpg) |
+
+It should be noted that only the Raspberry Pi and Power Board are required for your kit to work. The other boards will provide useful features to help your robot work.
+
+You will also need a [Battery](./batteries.md) to use your kit, although this may not be supplied to you immediately.