Add Playwright installation step and update step numbering

README.md

@@ -12,16 +12,22 @@ An AI-powered coding assistant designed to streamline and solve complex scientif
    ```
    git clone https://github.com/UIUC-Chatbot/workflow-agent
    ```
+
 2. Install dependencies:
    ```
    pip install -r requirements.txt
    ```
+
 3. Set up your environment variables in a `.env` file based on the provided `.env.example`.
 
-4. Prepare the `issue.json` file required for running the agent. This file should contain the issue data in JSON format that the agent will process. For the structure of `issue.json`, refer to the [Issue class definition](type/issue.py).
+4. Install Playwright dependencies for browser automation:
+   ```
+   playwright install
+   ```
 
+5. Prepare the `issue.json` file required for running the agent. This file should contain the issue data in JSON format that the agent will process. For the structure of `issue.json`, refer to the [Issue class definition](type/issue.py).
 
-5. Run the agent:
+6. Run the agent:
    ```
    python main.py
    ```