diff --git a/en/basic-cases/esp32cam/index.rst b/en/basic-cases/esp32cam/index.rst
index 3a0c08f3..1710730f 100644
--- a/en/basic-cases/esp32cam/index.rst
+++ b/en/basic-cases/esp32cam/index.rst
@@ -1,2 +1,2 @@
-ESP32CAM Cases
+ESP32CAM Cases
 ****************
\ No newline at end of file
diff --git a/en/basic-cases/m5go/index.rst b/en/basic-cases/m5go/index.rst
index 77470f2f..cccf705d 100644
--- a/en/basic-cases/m5go/index.rst
+++ b/en/basic-cases/m5go/index.rst
@@ -1,2 +1,2 @@
-M5GO Cases
+M5GO Cases
 ****************
\ No newline at end of file
diff --git a/en/basic-cases/m5stack-core/index.rst b/en/basic-cases/m5stack-core/index.rst
index 5f8df638..76313205 100644
--- a/en/basic-cases/m5stack-core/index.rst
+++ b/en/basic-cases/m5stack-core/index.rst
@@ -1,2 +1,2 @@
-M5Stack Core Cases
+M5Stack Core Cases
 *******************
\ No newline at end of file
diff --git a/en/product-documents/tools/m5stack_usb_downloader.md b/en/product-documents/tools/m5stack_usb_downloader.md
index f2badc28..6b645845 100644
--- a/en/product-documents/tools/m5stack_usb_downloader.md
+++ b/en/product-documents/tools/m5stack_usb_downloader.md
@@ -1,33 +1,33 @@
-# M5Stack USB Downloader
-
-## DESCRIPTION
-
-1. USB to URAT Chip. CP2104 supports automatic firmware download of ESP32/ESP8266
-2. TXD light, RXD light, Power light and 6pin @ 2.54mm bus sockets.
-
-## PARAMETER
-
-PinNumber | PinName
----|---
-1 | GND
-2 | GPIO0
-3 | EN
-4 | TXD
-5 | RXD
-6 | 3.3V
-
-### NOTE 
-
-There are two reserved pins(RTS, DTR) on M5Stack USB Downloader for other applications.
-
-## INCLUDES
-
-- 1x M5Stack USB Downloader
-
-## DOCUMENTS
-
-- [Schematic](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/USBtool.pdf)
-- [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide.md)
-
-
-
+# M5Stack USB Downloader
+
+## DESCRIPTION
+
+1. USB to URAT Chip. CP2104 supports automatic firmware download of ESP32/ESP8266
+2. TXD light, RXD light, Power light and 6pin @ 2.54mm bus sockets.
+
+## PARAMETER
+
+PinNumber | PinName
+---|---
+1 | GND
+2 | GPIO0
+3 | EN
+4 | TXD
+5 | RXD
+6 | 3.3V
+
+### NOTE 
+
+There are two reserved pins(RTS, DTR) on M5Stack USB Downloader for other applications.
+
+## INCLUDES
+
+- 1x M5Stack USB Downloader
+
+## DOCUMENTS
+
+- [Schematic](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/USBtool.pdf)
+- [UserGuide](https://github.com/watson8544/M5Stack-UserGuide/blob/master/TOOLS_DOCS/M5Stack-USB-Downloader-UserGuide.md)
+
+
+