调整DraggableGridView的格式

Author: 冯越新

English Version/README.md

@@ -402,7 +402,8 @@ Project Address: https://github.com/thquinn/DraggableGridView
 Demo Apk: https://github.com/thquinn/DraggableGridView/blob/master/bin/DraggableGridViewSample.apk?raw=true  
 You can customize the width and height of item,and the count of item each line,You can also customize the padding of line.Default value is 20dp.  
 Project Address: [DraggableGridView](https://github.com/andyken/DraggableGridView)  
-Renderings: ![Renderings](https://github.com/andyken/DraggableGridView/blob/master/sample/sample.gif)
+Renderings:   
+![Renderings](https://github.com/andyken/DraggableGridView/blob/master/sample/sample.gif)
 
 1. StickyGridHeaders  
 StickyGridHeaders is an Android library that provides a GridView that shows items in sections with headers. By default the section headers stick to the top like the People app in Android 4.x but this can be turned off.  

README.md

@@ -583,7 +583,8 @@ Item 可拖动交换位置的 GridView，实际是自己继承 ViewGroup 实现
 Demo 地址：https://github.com/thquinn/DraggableGridView/blob/master/bin/DraggableGridViewSample.apk?raw=true  
 也可自定义item的宽高和每行的个数，同时修改了交换逻辑，当移动到另一个item时就进行交换，并删除滚动逻辑。  
 项目地址：[DraggableGridView](https://github.com/andyken/DraggableGridView)  
-效果图：![Renderings](https://github.com/andyken/DraggableGridView/blob/master/sample/sample.gif)
+效果图：  
+![Renderings](https://github.com/andyken/DraggableGridView/blob/master/sample/sample.gif)
 
 
 1. StickyGridHeaders  

繁體中文版/README.md

@@ -406,7 +406,8 @@ Item可拖動交換位置的GridView，實際是自己繼承ViewGroup實現，
 Demo地址：https://github.com/thquinn/DraggableGridView/blob/master/bin/DraggableGridViewSample.apk?raw=true  
 也可自定義item的寬高和每行的個數，同時修改了交換邏輯，當移動到另壹個item時就進行交換，並刪除滾動邏輯。  
 項目地址：[DraggableGridView](https://github.com/andyken/DraggableGridView)  
-效果圖：![Renderings](https://github.com/andyken/DraggableGridView/blob/master/sample/sample.gif)
+效果圖：  
+![Renderings](https://github.com/andyken/DraggableGridView/blob/master/sample/sample.gif)
 
 1. StickyGridHeaders  
 GroupName滑動到頂端時會固定不動直到另外一個GroupName到達頂端的GridView