Added Comment for mysql test route

Author: vibhasfl

server/modules/users/user.routes.js

@@ -9,6 +9,8 @@ const userRoutes = express.Router()
 userRoutes.get('/', asyncWrapper(users.index))
 userRoutes.post('/', validate(newuser), asyncWrapper(users.create))
 userRoutes.put('/:id', asyncWrapper(users.update))
+
+// This route uses mysql DB for demo purpose to just show how can one use mysql in this app
 userRoutes.get('/testmysqlroute', asyncWrapper(users.testMysql))
 
 export { userRoutes }