Add bartveneman to funding.yml (#186)

Author: bartveneman

.github/funding.yml

@@ -1,4 +1,4 @@
-github: []
+github: [bartveneman]
 patreon: bartveneman
 open_collective: projectwallace
 custom: ['https://www.projectwallace.com/sponsor', 'https://www.paypal.me/bartveneman']