Update Getting Started in Dev Guide to set removalPolicy on S3 bucket so destroy will clean it up

Follow CDK Hello world here: https://docs.aws.amazon.com/cdk/latest/guide/getting_started.html

When I did the “cdk destroy” my S3 bucket was not deleted. I tried again with same result.

Environment

• **CLI Version :1.12.0 (build 923055e)
• **OS :Linux
• **Language :TypeScript

{
  "name": "aws-cdk",
  "version": "0.1.0",
  "bin": {
    "aws-cdk": "bin/aws-cdk.js"
  },
  "scripts": {
    "build": "tsc",
    "watch": "tsc -w",
    "test": "jest",
    "cdk": "cdk"
  },
  "devDependencies": {
    "@aws-cdk/assert": "^1.12.0",
    "@types/jest": "^24.0.18",
    "jest": "^24.9.0",
    "ts-jest": "^24.0.2",
    "aws-cdk": "^1.12.0",
    "ts-node": "^8.1.0",
    "typescript": "~3.6.2"
  },
  "dependencies": {
    "@aws-cdk/aws-s3": "^1.12.0",
    "@aws-cdk/core": "^1.12.0",
    "source-map-support": "^0.5.9"
  }
}

[ghost]

I’ve added this to the CDK Dev Guide repo. https://github.com/awsdocs/aws-cdk-guide/issues/159

Should get to it soon… I’ll close this one.

[ghost]

We should probably set the removal policy in the Getting Started.