Update FUNDING.yml

.github/FUNDING.yml

@@ -1,13 +1,5 @@
 # These are supported funding model platforms
 
-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
 patreon: akopachov
-open_collective: # Replace with a single Open Collective username
 ko_fi: akopachov
-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
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
-custom: [https://buycoffee.to/akopachov]
+custom: ["https://buycoffee.to/akopachov"]