You should add something about common problems like overheating. Usually air bubbles in the system. Some good techniques to refilling the coolant system
Remove the top radiator hose and directly fill the radiator
"burping" the hoses
Run the car without the radiator cap and put a spill-proof funnel on it, wait for the thermostat to open and the coolant level will drop and almost all of the air bubbles will be gone.
I do the last one and it's worked well for me, only one cycle for the thermostat to open and it's good to go.