change docs

docs/index.html

@@ -26,6 +26,7 @@
     <script src="./js/artplayer.js"></script>
     <script>
         var player = new Artplayer({
+            loop: true,
             container: '.artplayer-app',
             url: './video/one-more-time-one-more-chance.mp4',
             poster: './img/one-more-time-one-more-chance.jpg',