upd: nutui name

src/sites/doc/views/Main.vue

@@ -3,7 +3,7 @@
   <div class="doc-content" :class="themeName()">
     <div class="doc-content-index">
       <div class="content-left">
-        <div class="content-title"> NutUI 3.0 </div>
+        <div class="content-title"> NutUI </div>
         <div class="content-smile"> </div>
         <div class="content-subTitle">京东风格的轻量级移动端 Vue 组件库</div>
         <div class="content-button">