Create FUNDING.yml

.github/FUNDING.yml

@@ -0,0 +1,5 @@
+# These are supported funding model platforms
+
+# github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+liberapay: borgbackup
+#custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']