Make EVM quick-start guide agnostic

[Dr-Electron]

Description of change

As our quick start guide doesn't just mention testnets I made it agnostic

Type of change

• Documentation Enhancement

Change checklist

• [x] I have followed the contribution guidelines for this project
• [x] I have performed a self-review of my own changes
• [x] I have made sure that added/changed links still work
• [x] I have commented my code, particularly in hard-to-understand areas

[github-actions[bot]]

This pull request has been deployed to Vercel.

Latest commit: 73e30a6472d8e19e34054217974ae8c12b72afd9

:white_check_mark: Preview: https://iota-wiki-d80t1vqy0-iota1.vercel.app