Update install.md

install.md

@@ -91,7 +91,7 @@ _-U = Use UUID for source identifiers (shortcut for -t LABEL).
 $ arch-chroot /mnt  
   
 **Set your hostname.**  
-$ echo mycomputer > /etc/hostname  
+$ echo $host > /etc/hostname  
   
 **Generate locale.gen for your preferred language (and preferribly english).**  
 $ nano /etc/locale.gen