update readme

Author: nbaws

LICENSE

@@ -1,14 +0,0 @@
-Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this
-software and associated documentation files (the "Software"), to deal in the Software
-without restriction, including without limitation the rights to use, copy, modify,
-merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
-INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
-PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -20,3 +20,5 @@ The repository demonstrates some novel and reusable solution components:
 * SigV4 signing from an Envoy Proxy running in a container.
 * Service to service flows, using SigV4 signing in node.js and container based credentials.
 * Integration of VPC Lattice with ECS containers, using CDK
+
+Note: This solution is intended as sample code only, and not for production use. In particular, it does not implement TLS and the sample application will echo the contents of the request back to the caller.