.11 Oxygen will do.
.6 Nitrogen (add this first as it's has a warming effect).
If it's too cold, water vapour doesn't seem to convert to water - from what I've seen so far anyway (currently) - so warm to near zero Celsius, before adding water vapour, if required. Shouldn't be an issue on the moon anyway, as it's quite warm, but watch out for that in colder climes.
The larger the planet, the longer it takes to terraform. So the moon should be quite quick.