chore: Update README for v2.0.0

README.md

@@ -1,6 +1,6 @@
 # API server for ChatGPT
 
-Backend server for **ChatGPT With Voice**. You can check out [the website](https://chatgpt.sonng.dev/), or find the [frontend repo](https://github.com/thanhsonng/chatgpt-voice) on GitHub.
+Backend server for **ChatGPT With Voice**, now using the ✨ official ChatGPT APIs ✨. You can check out [the website](https://chatgpt.sonng.dev/), or find the [frontend repo](https://github.com/thanhsonng/chatgpt-voice) on GitHub.
 
 ## Installation
 Clone this repo.
@@ -9,18 +9,22 @@ Clone this repo.
 git clone https://github.com/thanhsonng/chatgpt-server.git
 ```
 
-Prepare environment variables by creating `.env` at the project root. You need to sign up for an OpenAI account [here](https://openai.com/api/), using email and password.
+Prepare environment variables by creating `.env` at the project root. You need to sign up for an [OpenAI API Key](https://platform.openai.com/overview).
 
 ```t
 PORT=8000 # Or whichever port available
-OPENAI_EMAIL="<your-openai-email>"
-OPENAI_PASSWORD="<your-openai-password>"
+OPENAI_API_KEY="<your-openai-api-key>"
 ```
 
 Start the server and you are done! Remember to use Node 18 or higher, this is the requirement of this package's core dependency – [`chatgpt`](https://github.com/transitive-bullshit/chatgpt-api).
 
 ```bash
 npm install
+
+# Run locally, or...
+npm run dev
+
+# Run on production
 npm run build
 npm run start
 ```