Update README.md

Author: soufiane-fadil

README.md

@@ -6,6 +6,10 @@ This project was generated with [Angular CLI](https://github.com/angular/angular
 
 Youtube: https://youtu.be/FP7Hs8lTy1k
 
+# Buy me a drink? :)
+
+[Donate](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=soufianosse@gmail.com&lc=US&no_note=0&item_name=Buy+me+a+bear&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted)
+
 # Demo 
 
 ![image](https://user-images.githubusercontent.com/4992012/68629236-59dd8b00-04e3-11ea-85f1-cc42419d4949.png)