add fire some description

docs/en/app/flir.md

@@ -28,6 +28,7 @@ The effective image generate by the Lepton sensor is 160×120, but you can proce
 - Field of view: 56°, with shutter
 - Lepton Input Supply Voltage: 1.2V，2.8V，2.5V - 3.1V IO
 - Fast imaging time (< 0.5 second)
+- Product Size：54mm x 54mm x 29mm
 
 ## Parameter
 

docs/en/core/fire.md

@@ -35,7 +35,7 @@ The newly-produced M5Core replaces the screen with better display performance an
 
 **Notice2:**
 
-There are two versions of IMU sensors (MPU6886 and SH200Q) currently available on the Fire host, which are basically identical in function.
+There are two versions of IMU sensors (MPU6886 and SH200Q) currently available on the Fire host, which are basically identical in function.To identify the IMU sensor, you can use python code to scan the I2C address MPU6886(0x68)/SH200Q（0x6c)
 
 **Notice3:**
 

docs/zh_CN/app/flir.md

@@ -25,6 +25,7 @@
 - Field of view: 56°, with shutter
 - Lepton 输入电源电压: 1.2V，2.8V，2.5V - 3.1V IO
 - 快速成像 (< 0.5 second)
+- 产品尺寸：54mm x 54mm x 29mm
 
 ## 参数
 

docs/zh_CN/core/fire.md

@@ -36,7 +36,7 @@ M5Stack Fire 配有三个可分离部件. 顶部与其他的M5主机一样，放
 
 **注意2:**
 
-目前发售的Fire主机存在两种IMU传感器版本（MPU6886与SH200Q），它们在功能上基本一致.
+目前发售的Fire主机存在两种IMU传感器版本（MPU6886与SH200Q），它们在功能上基本一致.要识别IMU传感器，可以使用python代码扫描I2C地址 MPU6886(0x68)/SH200Q（0x6c)
 
 
 **注意3：**