Add a note to the rule that applies to currently unsupported S3 resources.
Add a note to the rule that applies to currently unsupported S3 resources.

awslabs/aws-config-rules,ravvav/aws-config-rules,aaronkhoo/aws-config-rules,aaronkhoo/aws-config-rules,ravvav/aws-config-rules,awslabs/aws-config-rules,ravvav/aws-config-rules,awslabs/aws-config-rules,aaronkhoo/aws-config-rules