docs: Added Github sponsors button to the readme

Author: marc2332

readme.md

@@ -1,6 +1,7 @@
 # Freya 
 
 [![Discord Server](https://img.shields.io/discord/1015005816094478347?logo=discord&style=social)](https://discord.gg/sYejxCdewG)
+[![Github Sponsors](https://img.shields.io/github/sponsors/marc2332?style=social)](https://github.com/sponsors/marc2332)
 
 A GUI library for Rust powered by [Skia](https://skia.org/) and [Dioxus](https://dioxuslabs.com).