Update README.md

README.md

@@ -19,7 +19,7 @@ Future goals:
 
 # How to run and test edu OS kernel
 ## Preparation(Ubuntu14.04 is a recommended environment for compiling and running edu os)
-Simpleos use elf-i686-gcc as cross-compiler, please build the cross compiler on your system first.  
+eduos use elf-i686-gcc as cross-compiler, please build the cross compiler on your system first.  
 Remember to replace "CC=i686-pc-btos-gcc" in Makefile with your cross compiler.
 
 <a href = "http://wiki.osdev.org/GCC_Cross-Compiler">How to build a cross compiler</a>