Scratches on top of Head

Hi guys, so I am in the process of replacing the valve cover gasket for my base 944. Been having a really hard time removing the stubborn gasket off, and unfortunately scratched up a tiny area of the head with a wire wheel on a drill (the red circled portion) Should I be concerned? Also worth noting I can feel the grooves of the scratches with my fingernail. Any suggestions on how to remove the remaining gasket?