Add Sponsorships (GitHub)

.github/FUNDING.yml

+liberapay: benz0li
+ custom: ['https://benz0li.b-data.io/donate?project=2']

README.md

-<a href="https://benz0li.b-data.io/donate?project=2"><img src="https://benz0li.b-data.io/donate/static/donate-with-fosspay.png" alt="Donate with fosspay"></a> <a href="https://liberapay.com/benz0li/donate"><img src="https://liberapay.com/assets/widgets/donate.svg" alt="Donate using Liberapay" height="20"></a>
+<a href="https://liberapay.com/benz0li/donate"><img src="https://liberapay.com/assets/widgets/donate.svg" alt="Donate using Liberapay" height="20"></a> <a href="https://benz0li.b-data.io/donate?project=2"><img src="https://benz0li.b-data.io/donate/static/donate-with-fosspay.png" alt="Donate with fosspay"></a>
 
 # Træfik