Update datetest.html

Author: SheepTester

datetest.html

@@ -39,7 +39,7 @@
     <h1>Date Picker Test</h1>
     <p>type in console: <code>picker</code></p>
     <p>months are 0-indexed; dates and years are 1-indexed; as per JS</p>
-    <script src="date.min.js" charset="utf-8"></script>
+    <script src="js/date.min.js" charset="utf-8"></script>
     <script type="text/javascript">
       var picker=new DatePicker({d:11,m:8,y:2017},{d:1,m:5,y:2018});
       document.body.appendChild(picker.wrapper);