Nicola Sturgeon issued an important Covid update today as she introduced new guidance asking Scots to minimise household mixing in a bid to protect Christmas.The First Minister addressed MSPs at 2pm today about the Omicron variant and a further extension of the booster programme.The SNP leader stressed that Christmas is not "cancelled", but the Scottish Government will instead issue guidance for people to minimise contact over the festive period.As for the new variant, Sturgeon stated that the new variant is "increasing exponentially" as she confirmed two Omicron cases in hospital in Scotland.What did Nicola Sturgeon say in her update?