Add patreon shield

Author: bdlukaa

README.md

@@ -10,6 +10,9 @@
     <a title="Github License">
       <img src="https://img.shields.io/github/license/bdlukaa/system_theme" />
     </a>
+    <a title="Patreon" href="https://shieldsio-patreon.vercel.app/api/?username=bdlukaa&type=patrons">
+      <img src="https://img.shields.io/endpoint.svg?url=https%3A%2F%2Fshieldsio-patreon.vercel.app%2Fapi%3Fusername%3Dbdlukaa%26type%3Dpatrons&style=for-the-badge" />
+    </a>
   </p>
   <p align="center">
   A flutter plugin to get the current system theme information
@@ -70,10 +73,6 @@ Use the getter `SystemTheme.isDarkMode` to check if the device is in dark mode.
 final darkMode = SystemTheme.darkMode;
 ```
 
-## Sponsoring
-
-<a href="https://www.patreon.com/bePatron?u=50324277" data-patreon-widget-type="become-patron-button">Become a Patron!</a><script async src="https://c6.patreon.com/becomePatronButton.bundle.js"></script>
-
 ## Contribution
 
 Feel free to [open an issue](https://github.com/bdlukaa/system_theme/issues/new) if you find an error or [make pull requests](https://github.com/bdlukaa/system_theme/pulls).