You probably trapped some air in the engine block and the overflow was caused by air expansion, not boiling. I like to do an initial fill with the thermostat removed, and allow any trapped air to purge out until the coolant level stabilizes at the thermostat housing- - - -then button everything up and top it off as the engine warms up. Your numbers look good- - - -nowhere near hot enough to boil anything, water or antifreeze.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!