Very minor.
Under recommended system requirements in your quick start guide, you spell it Geforce GTS 560, and for those who doesn't know it the correct is Geforce GTX 560. You can find the guide on steam here: http://cdn2.steampowered.com/Manuals/107410/arma3_quick-start_guide.pdf?t=1374502493
Or on Arma 3's website here: http://www.arma3.com/quick-start-guide