docs: add them :P

[davidlj95]

There are some things documented in README.md and some favicon quirks in docs/favicon.md.

But there are many things going on here that would be worth explaining + structuring everything all together.

Something like:

• README.md: short version of current. mainly description, cool badges, instructions of how to setup the project, run it locally and links to rest of docs.
• CONTRIBUTING.md: PR flow, code of conduct?, conventional commits
• docs
  Index with all contents:
  • How it is build
    • Favicons (already exists)
    • Templated files
    • Server side rendering
    • Animations: based on Material 3 guidelines
    • Design: Chrome DevTools using DevTools inspector
  • Tooling
    • CI/CD with GitHub Actions
    • Conventional Commits
    • (Semantic) Releases
    • Deployments: GitHub Pages, GitLab Pages (deploy previews)
  • Features
    • ARIA support
    • Color scheme toggler
    • Non JS support
    • Cool files: security.txt and humans.txt
    • JSON Resume: explain custom fields too. Maybe schema extending official with custom fields + use this schema with IDE
    • Easter eggs list?

Could be nice to have some tool to publish docs somewhere in a nice format. Though maybe it's unneeded overhead. Markdown should be enough.

Also, we could add some badges to README.md to make it super duper kawaii and ultra cool~♪ 🌸💖 shields.io