Addres PR comments #2

Author: aj-aws-uk

examples/cdk/README.md

@@ -2,7 +2,7 @@
 
 This is a deployable CDK app that deploys AWS Lambda functions as part of a CloudFormation stack. These Lambda functions use the utilities made available as part of AWS Lambda Powertools (TypeScript) to demonstrate their usage.
 
-You will need to have a valid AWS Account in order to deploy these resources. These resources may incur costs to your AWS Account.
+You will need to have a valid AWS Account in order to deploy these resources. These resources may incur costs to your AWS Account. The cost from **some services** are covered by the [AWS Free Tier](https://aws.amazon.com/free/?all-free-tier.sort-by=item.additionalFields.SortRank&all-free-tier.sort-order=asc&awsf.Free%20Tier%20Types=*all&awsf.Free%20Tier%20Categories=*all) but not all of them. If you don't have an AWS Account follow [these instructions to create one](https://aws.amazon.com/premiumsupport/knowledge-center/create-and-activate-aws-account/).
 
 The example functions, located in the `lib` folder, are invoked automatically, twice, when deployed using the CDK construct defined in `lib/example-function.ts`. The first invocation demonstrates the effect on logs/metrics/annotations when the Lambda function has a cold start, and the latter without a cold start.