Update README_en.md

Author: windwhim

README_en.md

@@ -4,7 +4,7 @@
 
 ## Introduction
 
-![introduction](assest\introduction.gif)
+![introduction](assest/introduction.gif)
 
 Use shortcuts to hide the current window to the edge of the screen.
 
@@ -37,4 +37,4 @@ The following is partially quoted from [winautohide](https://github.com/scavin/w
 
 ### Two
 
-1. Go to [Release](https://github.com/windwhim/winautohidev2/release) and download the latest version.
+1. Go to [Release](https://github.com/windwhim/winautohidev2/release) and download the latest version.