readme: update badges

Author: CanadaHonk

README.md

@@ -1,5 +1,5 @@
 # OpenAsar
-![Nightly Status](https://github.com/GooseMod/OpenAsar/actions/workflows/nightly.yml/badge.svg) [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://choosealicense.com/licenses/mit/l) ![GitHub Sponsors](https://img.shields.io/github/sponsors/CanadaHonk?label=Sponsors&logo=github)
+![Nightly Status](https://github.com/GooseMod/OpenAsar/actions/workflows/nightly.yml/badge.svg) [![License: AGPL v3](https://img.shields.io/badge/License-AGPL_v3-blue.svg)]]([https://choosealicense.com/licenses/agpl/l](https://choosealicense.com/licenses/agpl-3.0/))
 
 **An open-source alternative of Discord desktop's `app.asar`**
 
@@ -20,4 +20,4 @@
 
 
 ## Config
-You can configure OpenAsar by clicking the "OpenAsar..." version info in the bottom of your settings sidebar, which will open the config window.
+You can configure OpenAsar by clicking the "OpenAsar..." version info in the bottom of your settings sidebar, which will open the config window.