Add package.json

package.json

@@ -0,0 +1,13 @@
+{
+  "name": "nodejs-hello-world-api",
+  "version": "1.0.0",
+  "description": "A simple Node.js project to create a Hello World API using Express.js.",
+  "main": "app.js",
+  "scripts": {
+    "start": "node app.js"
+  },
+  "dependencies": {
+    "express": "^4.17.1",
+    "body-parser": "^1.19.0"
+  }
+}