diff --git a/KS-602S-Switch.md b/KS-602S-Switch.md
index 0341c5f6..18116c36 100644
--- a/KS-602S-Switch.md
+++ b/KS-602S-Switch.md
@@ -12,6 +12,7 @@ Unboxing:
 ![](https://github.com/lvgeek/KS-602S/blob/master/images/IMG_0287.jpg)
 
 Header is marked GND, RXD, TXD, 3V3.
+
 RXD is connected to Transmit on your programmer
  
 TXD is connected to Receive on your programmer