message: give gateway unique name
diff: @@ -125,7 +125,7 @@ export class TheSagaStepfunctionSingleTableStack extends cdk.Stack {
  * Simple API Gateway proxy integration
  */
  // defines an API Gateway REST API resource backed by our "stateMachineLambda" function.
  - new apigw.LambdaRestApi(this, 'SagaPattern', {
  + new apigw.LambdaRestApi(this, 'SagaPatternSingleTable', {
  handler: sagaLambda
  });
  }
  