Added readme

README.md

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+# Calendar App
+
+A full-stack calendar application built with Rust, featuring a Yew frontend and Axum backend with CalDAV integration.
+
+## Features
+
+- Interactive calendar interface
+- Event creation and management
+- CalDAV server integration
+- User authentication with JWT
+- iCal format support
+- Weekly recurrence patterns
+- Responsive web design
+
+## Architecture
+
+- **Frontend**: Yew (Rust WebAssembly)
+- **Backend**: Axum (Rust async web framework)
+- **Protocol**: CalDAV for calendar synchronization
+- **Database**: SQLite (via migrations)
+- **Build Tool**: Trunk for frontend bundling
+
+## Getting Started
+
+### Prerequisites
+
+- Rust (latest stable version)
+- Trunk (`cargo install trunk`)
+
+### Development
+
+1. Start the backend server:
+   ```bash
+   cd backend
+   cargo run
+   ```
+
+2. Start the frontend development server:
+   ```bash
+   trunk serve
+   ```
+
+3. Open your browser to `http://localhost:8080`
+
+### Building for Production
+
+```bash
+trunk build --release
+```
+
+## Project Structure
+
+- `src/` - Frontend Yew application
+- `backend/` - Axum backend server
+- `migrations/` - Database schema migrations
+- `dist/` - Built frontend assets