Update FUNDING.yml

Author: 奇淼（piexlmax

.github/FUNDING.yml

@@ -10,3 +10,4 @@ liberapay: # Replace with a single Liberapay username
 issuehunt: # Replace with a single IssueHunt username
 otechie: # Replace with a single Otechie username
 custom: https://www.gin-vue-admin.com/docs/coffee
+持续捐赠: https://afdian.net/@Gin-Vue-Admin