docs: update README LICENSE link to use relative path (#15)

Author: codevogel

README.md

@@ -488,4 +488,5 @@ See [CONTRIBUTING.md](./CONTRIBUTING.md) for more information on how to contribu
 
 ## License
 
-This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.
+This project is licensed under the MIT License. See the [LICENSE](./LICENSE)
+file for details.