chore: add FUNDING.json

Author: yyx990803

Diff for: FUNDING.json

@@ -0,0 +1,7 @@
+{
+  "drips": {
+    "ethereum": {
+      "ownedBy": "0x5393BdeA2a020769256d9f337B0fc81a2F64850A"
+    }
+  }
+}