Chapter 2: change back to use prettier

Chapter02/interfacing-with-io/greeting.js

@@ -1,4 +1,4 @@
-process.stdin.on('data', data => {
-  const name = data.toString().trim().toUpperCase()
-  process.stdout.write(`Hello ${name}!`)
-})
+process.stdin.on("data", (data) => {
+  const name = data.toString().trim().toUpperCase();
+  process.stdout.write(`Hello ${name}!`);
+});