update readme

README.md

@@ -9,52 +9,68 @@ app_file: scripts/main.py
 pinned: false
 ---
 
-This repository contains the notebooks for the RAG course in [notebooks](./notebooks).
+This repository contains the notebooks for the RAG (Retrieval-Augmented Generation) course in the [notebooks](./notebooks) directory.
 
-A Gradio UI for an AI tutor chatbot is available in [scripts/gradio-ui.py](./scripts/gradio-ui.py).
+### Gradio UI Chatbot
 
-The Gradio demo is deployed on Hugging Face Spaces service at this URL: [AI Tutor Chatbot on Hugging Face](https://huggingface.co/spaces/towardsai-buster/ai-tutor-chatbot).
+A Gradio UI for the chatbot is available in [scripts/main.py](./scripts/main.py).
 
-There is a GitHub action that automatically deploys the Gradio demo after pushing changes inside the scripts folder.
+The Gradio demo is deployed on Hugging Face Spaces at: [AI Tutor Chatbot on Hugging Face](https://huggingface.co/spaces/towardsai-buster/ai-tutor-chatbot).
+
+**Note:** A GitHub Action automatically deploys the Gradio demo when changes are pushed to the `scripts` folder.
 
 ### Installation (for Gradio UI)
 
 1. **Create a new Python environment:**
 
-    ```bash
-    python -m venv .venv
-    ```
-
-    This command creates a virtual environment named `.venv`.
+   ```bash
+   python -m venv .venv
+   ```
 
 2. **Activate the environment:**
 
-    For macOS and Linux:
+   For macOS and Linux:
+
+   ```bash
+   source .venv/bin/activate
+   ```
+
+   For Windows:
 
-    ```bash
-    source .venv/bin/activate
-    ```
+   ```bash
+   .venv\Scripts\activate
+   ```
 
 3. **Install the dependencies:**
 
-    ```bash
-    pip install -r requirements.txt
-    ```
+   ```bash
+   pip install -r requirements.txt
+   ```
 
 ### Usage (for Gradio UI)
 
 1. **Set environment variables:**
 
-    Before running the application, you need to set up your OpenAI API key:
+   Before running the application, set up the required API keys:
+
+   For macOS and Linux:
+
+   ```bash
+   export OPENAI_API_KEY=your_openai_api_key_here
+   export COHERE_API_KEY=your_cohere_api_key_here
+   ```
+
+   For Windows:
 
-    ```bash
-    export OPENAI_API_KEY=your_openai_api_key_here
-    ```
+   ```bash
+   set OPENAI_API_KEY=your_openai_api_key_here
+   set COHERE_API_KEY=your_cohere_api_key_here
+   ```
 
 2. **Run the application:**
 
-    ```bash
-    python scripts/gradio-ui.py
-    ```
+   ```bash
+   python scripts/main.py
+   ```
 
-    This command starts the Gradio interface for the AI Tutor chatbot.
+   This command starts the Gradio interface for the AI Tutor chatbot.