Bleed hole on inlet plenum, 10mm spanner.
Have the car facing uphill and open (release pressure first!)
Bubbles of air trapped in the head come out,
top up from the radiator and see the coolant come out of the hole,
plug it back up,
run the motor for a minute or two,
Repeat untill all air is gone.
Ps. buy good tools, they are good as gold and will last decades, i have some of my grandfathers tools, spanners in the 50'S were made of good steel.
Dont buy shit tools, they will strip bolts and bust your knuckles and you will wish you had just borrowed dads sidchrome set.