Added README and test

permissions.js

@@ -67,4 +67,7 @@ app.post('/querypermiss', (req,res) => {
 //Listening on local port 3000 -temporary, to be changed to env Var
 app.listen(3000, () => {
     console.log(`App is running on port 3000`);
-})
+})
+
+//For testing purpose
+//module.exports = app;