chore: README updated

Author: Zero6992

README.md

@@ -40,6 +40,22 @@
 
    ![image](https://user-images.githubusercontent.com/89479282/205949600-0c7ddb40-7e82-47a0-b59a-b089f929d177.png)
 
+## Optional: OPENAI ACCESS (gpt-4 supported)
+
+If you possess an OpenAI Plus account, utilizing the OpenAI provider is recommended for a smoother experience.
+
+1. Navigate to https://chat.openai.com/ and log in with your account credentials.
+2. Launch the Developer Tools in your browser.
+3. In the Developer Tools, navigate to the `Network` tab.
+4. Refresh the page to record the network activity.
+5. Chat whth the bot one time.
+6. In the Network tab, right-click on any item in the list of network activities and choose `Save all as HAR with content`. Save the file with the name `a.har`.
+7. place the `a.har` file in the `./hardir` directory.
+
+* You can change `MODEL` in `.env` to `gpt-4` also
+
+> [!CAUTION]
+> Ensure that your `a.har` file is stored securely, as it may contain sensitive information.
 
 ## Step 2: Run the bot on the desktop