How to donate to support the project?

I have started using Anki recently to help me remember stuff when learning russian. I find this software truly amazing. It really helps a lot instead of doing it on paper or excel sheet.
I’d like to donate to the project to support the dev team.
As I’m not an Iphone user I’m not going to buy the Iphone app, so if you have a paypal donation button I’ll be glad to donate some funds.

Thank you for the thought!