changed Lambda demo to support AWS Academy and create individual bucket for group with globally unique name in S3

example-projects/counter-demo/aws-lambda/lambda_function.py

@@ -46,6 +46,7 @@ def lambda_handler(event, context):
         'statusCode': 200,
         'headers': {
             'Content-Type': 'text/html',
+            'x-hsfd-counter': str(counter)
         },
         'body': output
     }