Update package.json

package.json

@@ -2,7 +2,7 @@
   "name": "chat-app",
   "version": "1.0.0",
   "description": "",
-  "main": "app.js", 
+  "main": "app.js",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "start": "node app.js"
@@ -11,6 +11,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "express": "^5.1.0",    
-    "socket.io": "^4.8.1"   
-}
+    "express": "^5.1.0",   // <--- MAKE SURE THIS COMMA IS PRESENT
+    "socket.io": "^4.8.1"
+  } // <-- NO comma here, as it's the last item in 'dependencies'
+} // <-- NO comma here, as 'dependencies' is the last item in the main object