Updated bootloader example

linux-bootstrap-1.md

@@ -106,17 +106,18 @@ Now BIOS started to work, after all initializations, hardware checking, it needs
 jmp boot
 
 boot:
+    mov al, '!'
     mov ah, 0x0e
     mov bh, 0x00
     mov bl, 0x07
-    mov al, '!'
 
     int 0x10
     jmp $
 
 times 510-($-$$) db 0
-db 0xaa
+
 db 0x55
+db 0xaa
 ```
 
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