Add comprehensive documentation: README, DEPLOYMENT, CHANGELOG, .env.example

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [Unreleased]
+
+### Added
+- Nature-inspired color theme with emerald sage, parchment, and slate soft palettes
+- Fixed navigation with smooth scrolling to sections
+- Hero section with professional introduction and purpose statement
+- Philosophy section with theoretical orientation statement
+- Skills gallery showcasing presentations (NIT for SUD, ACA 2026 Preview)
+- Dynamic experience section with DOCX resume parsing
+- Credentials grid with downloadable PDFs and certifications
+- Headshot placeholder with nature-themed silhouette
+- Docker + Caddy deployment configuration
+
+### Changed
+- Upgraded to Tailwind CSS v4 with new `@import` syntax
+- Improved resume parsing with better role/org detection
+- Enhanced UI with loading skeletons and hover effects
+
+### Fixed
+- Vite host blocking for production domains
+- PostCSS configuration for Tailwind v4
+- DNS resolution and SSL certificate issues
+
+## [1.0.0] - 2026-04-18
+
+### Added
+- Initial portfolio site with React 19 + TypeScript + Tailwind CSS
+- Single-page application with 5 main sections
+- Responsive design for mobile and desktop
+- Document hosting for resume, certifications, and presentations
+
+[Unreleased]: https://git.dustin.coffee/hobokenchicken/peters-portfolio-site/compare/main...HEAD
+[1.0.0]: https://git.dustin.coffee/hobokenchicken/peters-portfolio-site/releases/tag/v1.0.0