Update FUNDING.yml

.github/FUNDING.yml

 # These are supported funding model platforms
 
-github: weihuajiang # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+github:  # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
 issuehunt: weihuajiang
 patreon: # Replace with a single Patreon username
 open_collective: # Replace with a single Open Collective username