omi-cloud - add loading wording

packages/omi-cloud/src/pages/index/index.js

@@ -33,7 +33,7 @@ define('page-index', class extends WeElement {
   }
 
   newTodo = () => {
-    wx.showLoading()
+    wx.showLoading('加载中')
     app.globalData.db.collection('todo').add({
       // data 字段表示需新增的 JSON 数据
       data: {
@@ -55,7 +55,7 @@ define('page-index', class extends WeElement {
   }
 
   installed = () => {
-    wx.showLoading()
+    wx.showLoading('加载中')
     this.query()
   }