Improve FUNDING.yml formatting

.github/FUNDING.yml

@@ -1,12 +1,7 @@
-# These are supported funding model platforms
-
-github: [lukechilds] # 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
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: ['https://blockstream.info/address/1LukeQU5jwebXbMLDVydeH4vFSobRV9rkj', 'https://blockstream.info/address/3Luke2qRn5iLj4NiFrvLBu2jaEj7JeMR6w', 'https://blockstream.info/address/bc1qlukeyq0c69v97uss68fet26kjkcsrymd2kv6d4', 'https://tippin.me/@lukechilds']# Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']
+github:
+    - 'lukechilds'
+custom:
+    - 'https://blockstream.info/address/1LukeQU5jwebXbMLDVydeH4vFSobRV9rkj'
+    - 'https://blockstream.info/address/3Luke2qRn5iLj4NiFrvLBu2jaEj7JeMR6w'
+    - 'https://blockstream.info/address/bc1qlukeyq0c69v97uss68fet26kjkcsrymd2kv6d4'
+    - 'https://tippin.me/@lukechilds'