diff --git a/docs/en/base/pm2.5.md b/docs/en/base/pm2.5.md
index f81d3634..54d27e64 100644
--- a/docs/en/base/pm2.5.md
+++ b/docs/en/base/pm2.5.md
@@ -1,4 +1,4 @@
-# PM2.5 {docsify-ignore-all}
+# PM2.5 Air Quality Kit {docsify-ignore-all}

diff --git a/docs/en/unit/makey.md b/docs/en/unit/makey.md
index 1f030939..1dc39f72 100644
--- a/docs/en/unit/makey.md
+++ b/docs/en/unit/makey.md
@@ -1,4 +1,4 @@
-# Unit MAKEY {docsify-ignore-all}
+# 16-Key Capacitive Touch Unit {docsify-ignore-all}


@@ -8,7 +8,7 @@
## Description
-**MAKEY** Unit is inspired by an Invention kit called Makey Makey which brings the concept that users can
+**16-Key Capacitive Touch Unit** Unit is inspired by an Invention kit called Makey Makey which brings the concept that users can
connect everyday objects to computer programs. Using a circuit board, alligator clips, and a USB cable, the circuit uses closed loop electrical signals to send the microprocessor either a keyboard stroke or mouse click signal.
We've tried connect a bounch of fruits, one for each key,to this Unit. When you touch the apple, you make a connection, and MaKey sends the processor a keyboard message. The buzzer inside or speaker on M5core will exhibit the key value, so instead of using a keyboard, you can make a fruit piano.
diff --git a/docs/index.md b/docs/index.md
index 4c9972b8..d977998a 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -54,6 +54,7 @@
+
**M5Core**
-
- PM2.5
-
+
+ PM2.5
+
- PM2.5
- -
+ PM2.5
+ +

* * *
diff --git a/docs/zh_CN/unit/makey.md b/docs/zh_CN/unit/makey.md
index fdb2c63e..10d864b5 100644
--- a/docs/zh_CN/unit/makey.md
+++ b/docs/zh_CN/unit/makey.md
@@ -1,4 +1,4 @@
-# Unit MAKEY {docsify-ignore-all}
+# 16-Key Capacitive Touch Unit {docsify-ignore-all}


@@ -8,7 +8,7 @@
## 描述
-**MAKEY** 是一款创意键盘 Unit.该 Unit 的灵感来自一个名为Makey Makey的发明套件,它带给用户全新的交互使用概念.将日常物品连接至该 Unit,利用物体的导电性构建一个电路回路,从而模拟键盘输入或是鼠标点击的信号.例如将水果接入回路,当我们触碰水果时,将产生电信号用作控制,基于这样的交互方式能够制作水果钢琴,或是游戏控制器等应用.
+**16-Key Capacitive Touch Unit** 是一款创意键盘 Unit.该 Unit 的灵感来自一个名为Makey Makey的发明套件,它带给用户全新的交互使用概念.将日常物品连接至该 Unit,利用物体的导电性构建一个电路回路,从而模拟键盘输入或是鼠标点击的信号.例如将水果接入回路,当我们触碰水果时,将产生电信号用作控制,基于这样的交互方式能够制作水果钢琴,或是游戏控制器等应用.
该 Unit 通过GROVE A接口与M5Core进行通信,I2C地址为0x51.