Update index.js

index.js

@@ -50,7 +50,7 @@ const createServer = () => {
   const server = http.createServer((req, res) => {
     if (req.url === '/') {
       res.writeHead(200, {'Content-Type': 'text/plain'});
-      res.end("It's just work!");
+      res.end("It just works!");
     } else {
       res.writeHead(404, {'Content-Type': 'text/plain'});
       res.end('404 Not Found');