Update FUNDING.yml

enable sponsorship.

.github/FUNDING.yml

@@ -9,4 +9,4 @@ community_bridge: # Replace with a single Community Bridge project-name e.g., cl
 liberapay: # Replace with a single Liberapay username
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
-custom: # https://gitee.com/kevwan/static/raw/master/images/sponsor.jpg
+custom: https://gitee.com/kevwan/static/raw/master/images/sponsor.jpg