Merge pull request 'Add an article about GitHub sponsor' (#25) from sponsor into main

Reviewed-on: #25
Reviewed-by: Reynir Björnsson <reynir@reynir.dk>

articles/2024-12-04-github-sponsor.md

@@ -0,0 +1,45 @@
+---
+date: 2024-12-04
+title: Sponsor us via GitHub
+description: A new way to sponsor our cooperative
+tags:
+  - cooperative
+  - github
+author:
+  name: Romain Calascibetta
+  email: romain.calascibetta@gmail.com
+  link: https://blog.osau.re/
+breaks: false
+---
+
+We're delighted to announce the possibility of helping our cooperative through
+the GitHub Sponsors platform. The link is available here:
+
+[https://github.com/sponsors/robur-coop](https://github.com/sponsors/robur-coop)
+
+We would also like to reiterate the possibility of making a donation[^preferable] to our
+cooperative via the IBAN of [Änderwerk][anderwerk] available here (if you need
+a tax-deductible donation receipt, please use [this form][donate]).
+
+    Account holder: Änderwerk gGmbH
+    Subject: robur
+    IBAN: DE46 4306 0967 1289 8604 00
+    BIC: GENODEM1GLS
+    Bank: GLS Gemeinschaftsbank, Christstrasse 9, 44789 Bochum, Germany
+
+More generally, you can refer to our [article][financial] which explains our
+funding since the creation of Robur and we would like to point out that,
+despite our funding, part of our work remains unfunded: in particular with
+regard to the maintenance of certain software as well as certain services made
+available to our users.
+
+We would therefore be delighted if users of our software and services could
+finance our work according to their means. GitHub in particular offers an
+easy-to-use platform for funding us (even if, in all transparency, it takes a
+certain amount from each transaction).
+
+[financial]: https://blog.robur.coop/articles/finances.html
+[anderwerk]: https://aenderwerk.de/
+[donate]: https://aenderwerk.de/donate
+
+[^preferable]: In fact, this method is preferable to us as this means it will go directly to us instead of through GitHub and Stripe who will take a small cut of the donation in fees.