aws/config: fix typo in Config struct documentation (#2169)
aws/config: fix typo in Config struct documentation (#2169)

fix typo in Config struct documentation in aws-sdk-go/aws/config.go
yxd-hde/aws-sdk-go,yxd-hde/aws-sdk-go,yxd-hde/aws-sdk-go,yxd-hde/aws-sdk-go,aws/aws-sdk-go,jasdel/aws-sdk-go