Crochet a border round the pot holder from RS with hook size 3 mm C and offwhite as follows Beg at the top of left corner crochet 1 sc through both layers ch 1 skip approx 1 cm 38 1 sc in next st through both layers repeat from round the whole pot holder and finish with 1 ch and 1 sl st in first sc on round

Could you correct the punctuation please?
Crochet a border round the pot holder from RS with hook size 3 mm / C and off-white as follows: Beg at the top of left corner, crochet 1 sc through both layers, * ch 1, skip approx 1 cm / 3/8'', 1 sc in next st through both layers *, repeat from *-* round the whole pot holder and finish with 1 ch and 1 sl st in first sc on round.