add atomic atom-hub PcbDoc

docs/en/atom/atomhub.md

@@ -89,6 +89,11 @@ Depending on your use case you can design the circuit  or prototype, soldering t
 
 If you need to supply power through an external power supply, you can choose to supply power directly to ATOM through USB, or solder the DC 5V connector and connect the positive and negative poles to the corresponding pins of the ATOM. If the input voltage is higher than 5V, you need to build your own voltage step-down circuit.If you need to use the GROVE port, connect the pad breakpoint corresponding to the pin number you decide to use.
 
+## Related Link
+
+-  **PcbDoc** 
+    - [AtomHubProto](https://github.com/m5stack/m5-structural-design-file/blob/master/PCB/AtomHubProto.PcbDoc)
+
 ## Example
 
 ### 1. Arduino

docs/en/atom/atomic.md

@@ -72,7 +72,10 @@
      </tbody>
 </table>
 
+## Related Link
 
+-  **PcbDoc** 
+    - [ATOMIC v1.0](https://github.com/m5stack/m5-structural-design-file/blob/master/PCB/Atomic_V1.0.PcbDoc)
 
 
 <script>

docs/zh_CN/atom/atomhub.md

@@ -85,6 +85,11 @@
 
 根据自身需求搭建电路原型，焊接相应元器件，通过VH-3.96接口连接外部电气设备。您也可以选择自行购买圆形防水接头连接线缆。如需通过外部电源供电，您可以选择通过USB直接给ATOM供电；或焊接DC 5V接头，并将正负极接至ATOM对应引脚，若输入电压高于5V，您需要自行搭建稳压电路。如果您需要使用GROVE,请将您确定使用的引脚号对应的焊盘断点进行连接。
 
+## 相关链接
+
+-  **PcbDoc** 
+    - [AtomHubProto](https://github.com/m5stack/m5-structural-design-file/blob/master/PCB/AtomHubProto.PcbDoc)
+
 ## 案例程序
 
 ### 1. Arduino

docs/zh_CN/atom/atomic.md

@@ -73,6 +73,11 @@
 </table>
 
 
+## 相关链接
+
+-  **PcbDoc** 
+    - [ATOMIC v1.0](https://github.com/m5stack/m5-structural-design-file/blob/master/PCB/Atomic_V1.0.PcbDoc)
+
 <script>
 
    var purchase_link = 'https://m5stack.com/collections/all/products/atomic-proto-kit';