📄 docs: Update readme

README.md

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 # Prompt Catalog
 
-## Overview & Purpose
+## Overview
 
-The Prompt Catalog is a centralized repository for prompts used in various applications, such as AI models or chatbots. It aims to provide a structured way to store, search, and categorize prompts for easy access and management.  It will serve as a comprehensive and user-friendly catalog of prompts that can be easily searched, categorized, and tagged, enhancing the usability and discoverability of prompts for developers and users alike.
+The Prompt Catalog is a centralized, searchable repository for storing and managing prompts used in AI models, chatbots, or any generative application. It provides a structured way to organize, tag, search, and reuse prompts—streamlining prompt engineering for developers, teams, and enthusiasts.
+
+## Features
+
+- **Prompt Types**: Categorize prompts as `System` or `Task`
+- **Tagging**: Add tags to describe and filter prompts
+- **Search**: Keyword and full-text search with filter by type and tags
+- **Metadata**: Each prompt includes:
+  - Title
+  - Description
+  - Tags
+  - Type
+  - Created/Last modified timestamps
+- **Import/Export**: Import/export prompts via JSON files
+- **AI Integration**: Suggest prompts using OpenAI, Together, or Ollama APIs (in progress)
+- **Web UI**: Clean interface to view, edit, and manage prompts
+- **Planned**:
+  - User auth and profiles
+  - Prompt favorites and contributions
+  - Ratings, version history, and sharing
+  - External API access
+
+## Tech Stack
+
+- **Frontend**: Astro + HTMX + Alpine.js (AHA Stack)
+- **Backend**: Supabase (self-hosted)
+- **Deployment**: Vercel or Netlify (frontend), Supabase (backend)
+
+## Database Schema
+
+### `prompts`
+
+| Column        | Type       |
+|---------------|------------|
+| id            | UUID       |
+| type          | text       |
+| title         | text       |
+| description   | text       |
+| tags          | array(text)|
+| created_at    | timestamp  |
+| updated_at    | timestamp  |
+
+*Future tables: `users`, `user_prompts`*
+
+## Development Roadmap
+
+Development is organized into phases. For details, see `Development Checklist.md`.
+
+### MVP Phases
+
+1. **Planning & Setup**
+2. **Database & Supabase API**
+3. **Front-End UI** from [`Front End Interface.png`](notes/Front%20End%20Interface.png)
+4. **Search & Tagging**
+5. **AI Prompt Suggestions**
+6. **Import/Export Functionality**
+
+### Post-MVP Enhancements
+
+- User login with Supabase Auth
+- User-contributed prompts and favorites
+- Ratings, version control, external API
+- Shareable links and embeds
+
+## Usage
+
+To run locally:
+
+```bash
+npm install
+npm run dev
+```
+
+You'll need a .env file with your Supabase credentials. See `supabase.env.example`.
+
+## Contributing
+
+Pull requests are welcome! Please keep contributions focused on core functionality and usability improvements.

supabase.env.example

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+PUBLIC_SUPABASE_URL=<your Supabase url>
+PUBLIC_SUPABASE_ANON_KEY=<your Supabase anon key>