refactor: adjust wwads banner

Author: ruanyf

index.html

@@ -27,6 +27,7 @@
   <div id="error">Oops! ... File not found!</div>
   <div id="flip"><div id="pageup">上一章</div><div id="pagedown">下一章</div></div>
   <div class="progress-indicator-2"></div>
+  <div class="wwads-cn wwads-vertical wwads-sticky" data-id="197" style="max-width:180px"></div>
 
   <script src="config.js"></script>
   <script type="text/javascript" charset="UTF-8" src="https://cdn.wwads.cn/js/makemoney.js" async></script>