Formatting in readme

Readme.md

@@ -5,5 +5,5 @@ Run cross.sh to set up gcc cross-compiler
 
 The following are commands for compiling and running the assembly:
 
-nasm boot.asm -f bin -o boot.bin
-qemu-system-i386 boot.bin
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+`nasm boot.asm -f bin -o boot.bin`   
+`qemu-system-i386 boot.bin`
\ No newline at end of file