Update README with comprehensive project documentation

README.md

@@ -1,3 +1,74 @@
-# pnger
+# PNGer - Modern PNG Editor & Resizer
 
-Modern PNG editor/resizer with direct upload and download - Docker deployable
+A simple, reactive, modern PNG editor and resizer with direct upload and download features. Deployed as a single Docker container on Unraid.
+
+## Features
+
+- **Drag & Drop Upload**: Intuitive file upload interface
+- **Real-time Preview**: See changes as you adjust settings
+- **Resize Operations**: Width, height, and aspect ratio controls
+- **Compression**: Optimize PNG file sizes
+- **Direct Download**: No server-side storage, immediate download
+- **Modern UI**: Sleek, responsive design
+
+## Tech Stack
+
+- **Frontend**: Svelte + Vite
+- **Backend**: Node.js + Express
+- **Image Processing**: Sharp
+- **Container**: Docker (Alpine-based)
+- **Deployment**: Unraid via Docker Compose
+
+## Quick Start
+
+### Local Development
+
+```bash
+# Install dependencies
+npm install
+
+# Run in development mode
+npm run dev
+```
+
+### Docker Deployment
+
+```bash
+# Build the image
+docker build -t pnger:latest .
+
+# Run the container
+docker run -p 8080:3000 pnger:latest
+```
+
+### Unraid Deployment
+
+1. Clone this repository to your Unraid server
+2. Use the provided `docker-compose.yml`
+3. Access via http://[unraid-ip]:8080
+
+## Project Structure
+
+```
+pnger/
+├── frontend/          # Svelte application
+├── backend/           # Express API server
+├── Dockerfile         # Multi-stage build
+├── docker-compose.yml # Unraid deployment config
+└── INSTRUCTIONS.md    # Development guide
+```
+
+## Configuration
+
+Environment variables (optional):
+- `PORT`: Server port (default: 3000)
+- `MAX_FILE_SIZE`: Maximum upload size in MB (default: 10)
+- `NODE_ENV`: production or development
+
+## License
+
+MIT License - See LICENSE file for details
+
+## Repository
+
+https://git.alwisp.com/jason/pnger