add

29jun2020/1-july-2020/webserver.js

+const http = require('http');
+
+const hostname = '127.0.0.1';
+const port = 3000;
+
+const server = http.createServer((req, res) => {
+    res.statusCode = 200;
+    res.setHeader('Content-Type', 'text/plain');
+    res.end('Hello World!\n');
+});
+
+server.listen(port, hostname, () => {
+    console.log(`Server running at http://${hostname}:${port}/`);
+});
\ No newline at end of file