docs: Migrate wiki.xode.net to Docusaurus documentation (closes #85)

[janisag07]

Summary

Complete migration of wiki.xode.net content into a structured, developer-friendly Docusaurus v3 documentation site.

What was done

• 17 documentation pages organized across 6 categories
• Docusaurus v3 with navigation sidebar, search-ready config, and GitHub edit links
• Xode branding — Polkadot-pink theme (#E6007A), dark mode support
• Contribution guide with style guidelines for community PRs

Content Sources

Source	Content
wiki.xode.net (GitHub Wiki)	Network architecture, Parachain, Collators, Validators
Repo README.md	Smart Contracts, Asset Hub, Staking, Governance, Block Scanner
Runtime/Pallets/Node READMEs	Development guides, SDK versions, test commands
xode.net website	Tokenomics, coin distribution, foundation info, wallets

Documentation Structure

docs/
├── intro.md
├── getting-started/    (Overview, Wallets)
├── network/            (Architecture, Parachain, Collators, Validators)
├── development/        (Smart Contracts, Pallets, Runtime, Node Setup)
├── tokenomics/         (Overview, Distribution, Staking)
├── governance/         (Foundation, Treasury)
└── ecosystem/          (Asset Hub, Block Scanner, Bridges)

How to run locally

cd docs
npm install
npm start

Checklist

• All wiki content migrated to Markdown
• Proper directory structure with clear navigation
• Navigation sidebar (Docusaurus)
• All links and references updated
• README.md with contribution guide
• Clean, consistent formatting
• Works with GitHub Pages / Docusaurus
• Static assets (favicon, social card, logo)

Closes #85

[janisag07]

Hi team, just checking in — the full Docusaurus migration is ready for review. Let me know if anything needs adjusting!