update payment

Author: fbchen

README.md

@@ -197,7 +197,9 @@ class ExampleState extends State<Example> {
 
 # Support me
 
-If it helps you, consider sponsoring me a cup of milk tea.
+If it helps you a lot, consider sponsoring me a cup of milk tea.
+<br/>
+[Paypal](https://www.paypal.com/paypalme/hackware1993)
 <br/>
 ![support.webp](https://github.com/hackware1993/flutter-constraintlayout/blob/master/support.webp?raw=true)