feat: Adding states endpoint and regex find to current endpoints

sections/countries/routes.js

@@ -3,6 +3,7 @@ const router = require('express').Router();
 const services= require('./services.js');
 
 router.get('/', services.getCountriesList);
+router.get('/find', services.findCountriesList);
 router.get('/:id', services.getCountry);
 
 module.exports = router;