📖 Reviewed and tested getting-started guide

[faermanj]

trafficstars

What type of PR is this?

/kind documentation

What this PR does / why we need it:

Reviewed getting started guide for reliability and clarity:

• Removed other providers, focused on AWS
• Tested to work with explicit versions and devbox configuration
• Added troubleshooting for load balancers
• Reviwed text with grammarly

Special notes for your reviewer:

Checklist:

• [X] squashed commits
• [X] includes documentation
• [X] includes emoji in title
• [ ] adds unit tests
• [ ] adds or updates e2e tests

Release note:

NONE