Update README.md

README.md

@@ -334,6 +334,12 @@ Thank you for your understanding and assistance in making SkywarnPlus a more rob
 
 SkywarnPlus is open-source and welcomes contributions. If you'd like to contribute, please fork the repository and use a feature branch. Pull requests are warmly welcome.
 
+If the spare time I put into the development of SkywarnPlus has helped you, please consider supporting!
+
+<center><a href="https://www.paypal.com/donate/?business=93AJFB9BAVSJL&no_recurring=0&item_name=Thank+you+so+much+for+your+support%21+I+put+a+lot+of+my+spare+time+into+this%2C+and+I+sincerely+appreciate+YOU%21&currency_code=USD">
+  <img src="https://raw.githubusercontent.com/stefan-niedermann/paypal-donate-button/master/paypal-donate-button.png" width=300px alt="Donate with PayPal" />
+</a></center>
+
 # License
 
 SkywarnPlus is open-sourced software licensed under the [MIT license](LICENSE).