Enhance README with Git integration and formatting

Updated README.md to include new sections for Git integration and improved formatting.

README.md

@@ -69,9 +69,7 @@ difi
 
 <p align="right">(<a href="#readme-top">back to top</a>)</p>
 
-## Integrations
+## Neovim Integration
-
-#### Neovim
 
 Get the ultimate review experience with **[difi.nvim](https://github.com/oug-t/difi.nvim)**.
 
@@ -86,6 +84,22 @@ Get the ultimate review experience with **[difi.nvim](https://github.com/oug-t/d
   </a>
 </p>
 
+<p align="right">(<a href="#readme-top">back to top</a>)</p>
+
+## Git Integration
+
+To use `difi` as a native git command (e.g., `git difi`), add it as an alias in your global git config:
+
+```bash
+git config --global alias.difi '!difi'
+```
+Now you can run it directly from git:
+```bash
+git difi
+```
+
+<p align="right">(<a href="#readme-top">back to top</a>)</p>
+
 ## Contributing
 
 ```bash
@@ -126,3 +140,4 @@ Contributions are especially welcome in:
 
 
 
+