Update save.js to find first item

Author: qmmr

update/save.js

@@ -3,7 +3,7 @@ var MongoClient = require('mongodb').MongoClient
 MongoClient.connect('mongodb://127.0.0.1:27017/course', function (err, db) {
 	if (err) throw err
 
-	var query = { 'student': 'Steve', 'assignment': 'hw1' }
+	var query = { 'assignment': 'hw1' }
 
 	db.collection('grades').findOne(query, function (err, doc) {
 		if (err) throw err