Updated creating an AWS account

[eric-w-hart]

Proposed changes

Updated the how to get started with AWS section. Added graphics and instructions.

Updated documentation.

Types of changes

Updated instructions.

• [ ] Bugfix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Refactor (changes to code, which do not change application behavior)

Checklist

• [x] I have filled out this PR template
• [x] I have read the CONTRIBUTING doc
• [ ] I have added automated tests that prove my fix is effective or that my feature works
• [x] I have added necessary documentation (README.md, inline comments, etc.)
• [x] I have updated the CHANGELOG.md under a ## next release, with a short summary of my changes

Relevant Links

Further comments

[amyschoen]

docs/img/aws_account_id_iam_console.png might be problematic since I see an account number listed. Is this still an active account?

[eric-w-hart]

No. It's an inactive account only used for the purpose of creating the screenshot.

[eric-w-hart]

@shubydo can you run the dce check?

[shubydo]

@shubydo can you run the dce check?

Done. Sorry for the delay.

[CLAassistant]

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