Enable installing MiniCheck as a package

README.md

@@ -47,13 +47,16 @@ fact-checking model despite its small size.**
 
 # Model Usage
 
-Please first clone our [GitHub Repo](https://github.com/Liyan06/MiniCheck) and install necessary packages from `requirements.txt`.
-
+Please run the following command to install the **MiniCheck package** and all necessary dependencies.
+```sh
+pip install "minicheck[llm] @ git+https://github.com/Liyan06/MiniCheck.git@main"
+```
 
 ### Below is a simple use case
 
 ```python
 from minicheck.minicheck import MiniCheck
+import os
 os.environ["CUDA_VISIBLE_DEVICES"] = "0"
 
 doc = "A group of students gather in the school library to study for their upcoming final exams."