add prettier

test/index.html

@@ -38,8 +38,10 @@
 
     </script>
     <script src="../dist/artplayer.js"></script>
+    <script src="../dist/artplayer-plugin-danmuku.js"></script>
     <script src="./constructor.test.js"></script>
     <script src="./option.test.js"></script>
+    <script src="./document.test.js"></script>
     <script>
         mocha.checkLeaks();
         mocha.run();