Update wechat.html

wechat.html

@@ -295,10 +295,9 @@ function getParams(paras){
 }
 
 $(function(){
-    var taowords = decodeURIComponent(getParams('taowords'));
     var url = decodeURIComponent(getParams('url'));
     var image = Base64.decode(decodeURIComponent(getParams('image')));
-    var taowords = ''
+    var words = Base64.decode(decodeURIComponent(getParams('words')));
     $('#img').attr('src', image);
     $('#coupons').attr('href',url);
     $('#copy').attr('data-clipboard-text', taowords);