updated readme file to reflect changes

README.md

@@ -18,12 +18,16 @@ Last-In AI is your friendly neighborhood research paper analyzer that turns thos
 - 🔍 **Smart Analysis**: Reads papers so you don't have to (but you probably should anyway)
 - 📊 **PDF Processing**: Turns those pesky PDFs into structured data faster than a grad student's coffee run
 - 🤹 **Orchestration**: Juggles multiple tasks like a circus professional
+- 🔄 **Multi-Provider Support**: Switch between different LLM providers like a DJ switching tracks
+- ⚙️ **Flexible Configuration**: Customize your LLM settings without breaking a sweat
 
 ## 🏗️ Architecture
 
 ```
 src/
 ├── analysis/         # Where the magic happens 🎩
+│   ├── analysis_engine.py    # Core analysis logic
+│   └── llm_provider.py      # LLM provider abstraction
 ├── data_acquisition/ # Paper fetching wizardry 📥
 ├── orchestration/    # The puppet master 🎭
 └── processing/       # PDF wrestling championship 📄
@@ -53,6 +57,7 @@ pip install -r requirements.txt
 ```bash
 cp .env.example .env
 # Edit .env with your favorite text editor
+# Don't forget to add your chosen LLM provider's API key!
 ```
 
 ### Method 2: Docker Installation 🐳
@@ -89,6 +94,24 @@ controller.process_papers("quantum_computing")
 # Now go grab a coffee, you've earned it!
 ```
 
+## ⚙️ LLM Configuration
+
+The system supports multiple LLM providers out of the box. Configure your preferred provider in `config/settings.yaml`:
+
+```yaml
+llm:
+  provider: deepseek  # Supported: openai, deepseek
+  temperature: 0.5
+  max_tokens: 4096
+  model: deepseek-r1  # Model name specific to the provider
+```
+
+Don't forget to set your API keys in `.env`:
+```bash
+OPENAI_API_KEY=your-openai-key-here
+DEEPSEEK_API_KEY=your-deepseek-key-here
+```
+
 ## 🛠️ Development
 
 ### Running Tests
@@ -104,6 +127,12 @@ docker compose -f docker/docker-compose.yml run --rm app python -m pytest
 - See `.env.example` for required configuration
 - Docker configurations are documented in `docker/README.md`
 
+### Adding New LLM Providers
+1. Extend the `LLMProvider` class in `src/analysis/llm_provider.py`
+2. Implement the `get_llm()` method for your provider
+3. Add your provider to the factory function
+4. Update configuration as needed
+
 ## 🤝 Contributing
 
 Found a bug? Want to add a feature? Have a brilliant idea? We're all ears! 
@@ -123,6 +152,7 @@ MIT License - Because sharing is caring! See [LICENSE](LICENSE) for more details
 - This README was written by an AI (plot twist!)
 - The code is probably smarter than most of us
 - We counted the coffee cups consumed during development, but lost count at 42
+- Our LLM providers are like pizza toppings - everyone has their favorite!
 
 ---
 Made with 💻 and questionable amounts of ☕