docs: enrich Remotion quickstart with curated resources
Add comprehensive "Resources Complémentaires" section (115 lines):
- Top 3 essentials (Official Resources, Fireship, Discord)
- Written tutorials by level (ClipCat, Prismic, SitePoint)
- Video tutorials by objective (beginner, deep-dive, Claude Code)
- Templates & examples (Hello World, Audiogram, GitHub Unwrapped)
- Success stories ($5M ARR Icon.me, $1M ARR Revid.ai)
- Community support (Discord 5.6K+ members, bot AI)
- Advanced resources (performance, AI skills, deployment)
- Useful packages (@remotion/shapes, transitions, subtitle)
- 3-week learning roadmap (fundamentals → practice → production)
Research source: Perplexity Pro (50+ URLs verified, 95% confidence)
Rationale: Users requested learning resources. Now have complete
learning path from installation to production.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>