Fix Beginner's Guide wiki link.

Author: akx

README.md

@@ -18,7 +18,7 @@ How to use
 =====
 Foreign LINUX is still in early stage, bad things like *crashing your system* or *eating your harddisk* may happen. **You have been warned.**
 
-For users who just want to give it a try. Download a premade Arch Linux environment [here](https://xysun.me/static/flinux-archlinux.7z). Then visit [Beginner's Guide](https://github.com/wishstudio/flinux/wiki/Beginnner's-Guide).
+For users who just want to give it a try. Download a premade Arch Linux environment [here](https://xysun.me/static/flinux-archlinux.7z). Then visit [Beginner's Guide](https://github.com/wishstudio/flinux/wiki/Beginner's-Guide).
 
 For just the binary executables, visit [release page](https://github.com/wishstudio/flinux/releases).