resources.md in cfn-guardian-0.11.6

- old
+ new

@@ -34,9 +34,10 @@
     Loadbalancer: app/application-loadbalancer-id
 ```
 
 | Resource Group              | Require Keys     |
 | --------------------------- | ---------------- |
+| Acm                         | Id               |
 | ApiGateway                  | Id               |
 | AmazonMQBroker              | Id               |
 | AutoScalingGroup            | Id               |
 | DocumentDBCluster           | Id               |
 | DynamoDBTable               | Id               |
\ No newline at end of file