Setup a patreon or some way for users to optionally donate to support AirMessage

[devjgm]

I just started using AirMessage to be able to iMessage from Linux, and it's really great. You should set up some way for fans and supporters to donate to you (optionally) to express our gratitude.

[tagavari]

Thanks a lot, I really appreciate you bringing this up! I do have a PayPal donation link here: https://www.paypal.com/biz/fund?id=CUPSZGE7L4Z56

This link isn't referenced anywhere in the software, so I'm looking into ways I can make this a easier to find.