updated

docs/en/module/battery.md

@@ -8,7 +8,7 @@
 
 # Description
 
-The M5Stack BATTERY Module is module with 850mAh High-Capacity Battery.
+<mark>BATTERY</mark> is a module with 850mAh High-Capacity Battery.
 User can create a portble device with any series of M5Stack Core and
 M5Stack BATTERY Module easily.
 

docs/en/module/lego_plus.md

@@ -36,7 +36,7 @@ LEGO+ module communicates with M5Core through IIC. The IIC address is 0x56.
 
 
 
-### 2. UIFlow
+### UIFlow
 
 *If you want the complete code, please click [here](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Module/LEGO_PLUS/UIFlow)。*
 

docs/en/module/stepmotor.md

@@ -1,4 +1,4 @@
-# Step Motor Module {docsify-ignore-all}
+# STEPMOTOR - Step motor driver {docsify-ignore-all}
 
 <img src="assets/img/product_pics/module/module_stepmotor_01.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_stepmotor_02.png" width="30%" height="30%"> <img src="assets/img/product_pics/module/module_stepmotor_03.png" width="30%" height="30%">
 
@@ -10,12 +10,12 @@
 
 ## Description
 
-This is a <mark>StepMotor Driver Module</mark> built in MEGA328P MCU which has been burnt <mark>GRBL</mark> firmware used to control stepper motors. The module comunicates with M5Core via I2C. It's I2C address is 0x70.
+<mark>STEPMOTOR</mark> is a module for driving step motor built in MEGA328P MCU which has been burnt **GRBL** firmware used to control stepper motors. The module comunicates with M5Core via I2C. It's I2C address is 0x70.
 
 ## Feature
 
 -  9-24V Power Input
--  Driver 3-way stepper motors<mark>(X, Y, Z)</mark>
+-  Driver 3-way stepper motors **(X, Y, Z)**
 -  Including a lithium battery interface
 
 ## Include

docs/en/unit/angle.md

@@ -8,7 +8,7 @@
 
 ## Description
 
-The Unit ANGLE is a potentiometer sensor that can detect rotary
+<mark>ANGLE</mark> is a potentiometer sensor that can detect rotary
 angle.
 
 ## Feature

docs/en/unit/ir.md

@@ -8,7 +8,7 @@
 
 ## Description
 
-The Unit IR is an infrared photoelectric pair unit that integrates a pair of infrared transmitting and receiving tubes. After connecting with the M5Core, you can control whether to emit infrared light through the M5Core. The other receiving tube can detect whether infrared light is sent from other devices to the unit.
+<mark>IR</mark> is an infrared photoelectric pair unit that integrates a pair of infrared transmitting and receiving tubes. After connecting with the M5Core, you can control whether to emit infrared light through the M5Core. The other receiving tube can detect whether infrared light is sent from other devices to the unit.
 
 Because the GROVE interface has two signal pins, one controls infrared transmission and one controls infrared reception, so if you want to send infrared light, you need the OUTPUT pin (GPIO26) to output high level.
 

docs/en/unit/light.md

@@ -8,7 +8,7 @@
 
 ## Description
 
-The Unit light is a light sensor unit with an adjustable resistor that can detect the lightironmental light intensity.
+<mark>LIGHT</mark> is a light sensor unit with an adjustable resistor that can detect the lightironmental light intensity.
 You can read analog signal(lightironmental light intensity) staright or get a digital signal(0/1) that means whether the light exists or not.
 
 When light intensity is big enough, the unit will output hight level(digital signal "1"). Otherwise, it'll output low level.

docs/zh_CN/faq.md

@@ -11,6 +11,9 @@
 
     https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_difference_between_cores.md
 
+
+<!-- 可以多个电池堆叠在一起吗？ 可以 -->
+
 <!-- ### Minicore
 
 ### 套件