* change xuanxuan description.

# Conflicts:
#	docs/index.min.json
#	index.html

index.html

@@ -65,7 +65,7 @@
     </div>
     <div class="text-center" id="ad">
       <a id="mzui" class="hidden" href="http://openzui.com/m/" target="_blank"><i class="icon icon-diamond"></i> &nbsp; MZUI &nbsp; // <span class="hidden-xs inline">为移动端设计，</span>基于 Flex 的 UI 框架</a>
-      <a id="xuanxuan" href="http://xuan.im" target="_blank"><i class="icon icon-xuanxuan"></i>喧喧 &nbsp; // <span class="hidden-xs inline">免费、安全、跨平台的</span>聊天方案</a>
+      <a id="xuanxuan" href="http://xuanim.com" target="_blank"><i class="icon icon-xuanxuan"></i>喧喧 &nbsp; // <span class="hidden-xs inline">专注于协同的聊天软件</span>聊天方案</a>
     </div>
   </div>
 </header>