Add dogsitters-finder to server/index.json and server/routers

server/routers/dogsitters-finder/index.js

@@ -0,0 +1,9 @@
+const { response } = require('express');
+
+const router = require('express').Router();
+
+router.get("/users", (request, response) => {
+    response.send(require("../json/users.json"))
+})
+
+module.exports = router;