Update CHANGELOG.md

[eric-w-hart]

Proposed changes

Update the readme to make the repo more beginner-friendly.

Types of changes

• [ ] 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

3rd party images are from AWS's site to visually reference specific material.

Further comments

I have added some useful content to help those who are not familiar with Cloud to begin using this reop.