add Github sponsor button

jmckenna · jmckenna · commit 47401841633f · 2020-10-10T10:04:10.000-03:00
diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
@@ -0,0 +1,4 @@
+# point to OSGeo sponsor page
+github: [OSGeo]
+# point to PayPal directly
+custom: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=MS7JAL9R268D2
