add artplayer-plugin-ass

docs/index.html

@@ -36,6 +36,9 @@
                                 <li>
                                     <a href="./?libs=.%2Funcompiled%2Fartplayer-plugin-gif.js&example=gif">artplayer-plugin-gif</a>
                                 </li>
+                                <li>
+                                    <a href="./?libs=.%2Funcompiled%2Fartplayer-plugin-ass.js&example=ass">artplayer-plugin-ass</a>
+                                </li>
                             </ul>
                             <ul>
                                 <li class="title">Tools</li>