add PowerC UIFlow

docs/en/hat/hat-powerc.md

@@ -30,6 +30,14 @@
 
 - 1x PowerC HAT(include battery x 2)
 
+## Communication protocol
+
+<mark>I2C address: 0x75</mark>
+
+## Code
+
+*To get UIFlow example, please click [here](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Hat/PowerC/UIFlow).*
+
 ## Related Video
 
 <video class="video_size" controls>

docs/zh_CN/hat/hat-powerc.md

@@ -34,6 +34,11 @@
 
 <mark>I2C地址: 0x75</mark>
 
+## Code
+
+[点击此处](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Hat/PowerC/UIFlow)，获取示例程序.
+
+
 <!-- ## EasyLoader 
 
 <img src="https://m5stack.oss-cn-shenzhen.aliyuncs.com/image/EasyLoader_M5StickC_logo.png" width="100px" style="margin-top:20px">