Update FUNDING.yml

Author: leontm-dev

.github/FUNDING.yml

@@ -3,13 +3,13 @@
 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
+ko_fi: leontm
 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
 lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
 polar: # Replace with a single Polar username
-buy_me_a_coffee: https://buymeacoffee.com/leontm
-thanks_dev: # Replace with a single thanks.dev username
+buy_me_a_coffee: leontm
+thanks_dev: gh/leontm-dev
 custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']