Add support button to README

Added a 'Buy Me a Coffee' button to support the project.

Author: BeardedTech0o

README.md

@@ -279,3 +279,5 @@ See [CHANGELOG.md](CHANGELOG.md) for release history.
 ## License
 
 [MIT](LICENSE) © BeardedTech0o
+
+[![Buy Me a Coffee](https://img.buymeacoffee.com/button-api/?text=Buy%20me%20a%20coffee&emoji=&slug=nullobj&button_colour=FFDD00&font_colour=000000&font_family=Cookie&outline_colour=000000&coffee_colour=ffffff)](https://www.buymeacoffee.com/nullobj)