Update FUNDING.yml

Author: arjendeetman

.github/FUNDING.yml

@@ -1,9 +1,7 @@
 # These are supported funding model platforms
 
-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
 patreon: # Replace with a single Patreon username
 open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
 tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
 community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
 liberapay: # Replace with a single Liberapay username
@@ -12,3 +10,4 @@ otechie: # Replace with a single Otechie username
 custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
 
 ko_fi: arjendeetman
+github: arjendeetman