Update README.md

README.md

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-![shell](https://user-images.githubusercontent.com/99351112/207697723-a3fabc0b-f067-4f83-96fd-1f7225a0bb38.svg) 
 
-✨Join the new [Discord server](https://discord.gg/fwfYAZWKqu) and start contributing to this project!✨
+![shell](https://user-images.githubusercontent.com/99351112/207697723-a3fabc0b-f067-4f83-96fd-1f7225a0bb38.svg)
+<div align="center">
+<p>
 
-# chatGPT-shell-cli 
+✨Join the new <a href="https://discord.gg/fwfYAZWKqu">Discord server</a> and start contributing to this project!✨</p>
+
+
+<h1>chatGPT-shell-cli</h1>
 
 A simple, lightweight shell script to use OpenAI's chatGPT and DALL-E from the terminal without installing python or node.js. The script uses the official ChatGPT model `gpt-3.5-turbo` with the OpenAI API endpoint `/chat/completions`. You can also use the new `gpt-4` model, if you have access.  
-The script allows the use of all other OpenAI models with the `completions` endpoint and the `images/generations` endpoint for generating images.
+The script supports the use of all other OpenAI models with the `completions` endpoint and the `images/generations` endpoint for generating images.
+</div>
 
 ## Features