adding launched Hong Kong region and some other zones to README
adding launched Hong Kong region and some other zones to README

$ aws ec2 describe-regions | pcregrep -o1 '"RegionName": "(.*)"' | xargs -L1 bash -c 'aws ec2 describe-availability-zones --region $0 | grep "ZoneName"'

jsonmaur/aws-regions,jsonmaur/aws-regions,jsonmaur/aws-regions