Pinout of 328 chip

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hi
im learning lay out pcb , want put atmega328 chip it, want double sure on pin out of chip, ive got layed out on board

pin8 +5
pin 9 crystal + cap
pin 10 crystal +cap
pin 20 +5
pin 22 gnd

pin 21 pin wasnt sure +5?, see guides connect +5 - aref, pin do?

ok see analog ref pin max input range 5v.
thank you

did make schematic? if upload it, lot easier see if it's okay.


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