Create funding.json

Author: GrapeBaBa

funding.json

@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0xbea008dac0a4a2d2cc88ed14468f7ce06b1a13d43ead38f31df3ca5f6d70d12e"
+  }
+}