update manual

docs/manual.md

@@ -25,10 +25,60 @@ Regardless of whether you are using the Arcade shield or web app, you first need
 
 Three Arcade shields for the micro:bit V2 are available on the market today, as shown below. After downloading the MicroCode hex file to your micro:bit V2, whenever you plug the micro:bit into the Arcade Shield, MicroCode should start running. Your MicroCode program is always live and runnable. Once you remove the micro:bit from the shield, the program will persist and continue to run (assuming the micro:bit is still powered, of course).
 
-- [Kittenbot's newbit Arcade shield](https://www.kittenbot.cc/products/newbit-arcade-shield) ![Kittenbot's newbit Arcade shield](./assets/newbit-shield.png)
-- [ELECFREAK's micro:bit Retro Arcade shield](https://shop.elecfreaks.com/products/micro-bit-retro-programming-arcade
-) ![ELECFREAK's micro:bit Retro Arcade shield](./assets/elecfreaks-shield.png)
-- [ICShopping's Game:bit](https://www.icshop.com.tw/products/368112100118) Email them [[email protected]](mailto:[email protected]) to get a quote (the web site only allows ordering/delivery in Taiwan). ![ICShopping's Game:bit](./assets/gamebit-shield.png)
+
+<table>
+<tr valign="top">
+<td width="33%" >
+
+[Kittenbot's newbit Arcade shield](https://www.kittenbot.cc/products/newbit-arcade-shield)
+
+</td><td width="33%" >
+
+[ELECFREAK's micro:bit Arcade shield](https://shop.elecfreaks.com/products/micro-bit-retro-programming-arcade)
+
+</td>
+<td width="33%" >
+
+[ICShopping's Game:bit Arcade shield](https://www.icshop.com.tw/products/368112100118)
+
+</td></tr>
+<tr>
+<td>
+
+[![Kittenbot's newbit Arcade shield](./assets/newbit-shield.png)](https://www.kittenbot.cc/products/newbit-arcade-shield)
+
+</td><td>
+
+[![ELECFREAK's micro:bit Retro Arcade shield](./assets/elecfreaks-shield.png)](https://shop.elecfreaks.com/products/micro-bit-retro-programming-arcade)
+
+</td><td>
+
+[![ICShopping's Game:bit](./assets/gamebit-shield.png)](https://www.icshop.com.tw/products/368112100118)
+
+</td></tr>
+<tr valign="top">
+<td>
+
+Small screen. No battery or battery pack included. 3.7V JST power jack on back. One [Jacdac](https://aka.ms/jacdac) port. 
+
+</td>
+
+<td>
+
+Assembly required. Small screen. AAA Battery pack on back. One [Jacdac](https://aka.ms/jacdac) port. 
+
+</td>
+<td>
+
+No assembly required. Large screen and 3d-printed enclosure with LiPo battery inside. Two [Jacdac](https://aka.ms/jacdac) ports. Email at [[email protected]](mailto:[email protected]) to get a quote (the web site only allows ordering/delivery in Taiwan). 
+
+
+</td>
+</tr>
+
+
+</table>
+
 
 ## [Web editor](https://aka.ms/m9) {#web}