Setup an AWS account, configure an API Gateway resource called 'getCrime', add a 'GET' method - point it to Lambda and input the lambda function found in getCrime-lambda.txt.
Deploy the API. Note the URL and update the address in the javascript of index.html
Go through the painful process of setting up CORS - http://docs.aws.amazon.com/apigateway/latest/developerguide/how-to-cors.html
Deploy files to a web root and open index.html