fix snippet reference (#3825)

* fix snippet reference * remove extra characters

Author: mairaw

xml/System.Web.DynamicData/MetaModel.xml

@@ -443,8 +443,8 @@
  
  The example consists of a page and its code-behind file. 
  
- [!code-aspx-csharp[System.Web.DynamicData.MetaModel#3](~/samples/snippets/csharp/VS_Snippets_WebNet/System.Web.DynamicData.MetaModel/CS/GetTable.aspx#3)] -->
- [!code-aspx-vb[System.Web.DynamicData.MetaModel#3](~/samples/snippets/visualbasic/VS_Snippets_WebNet/System.Web.DynamicData.MetaModel/VB/GetTable.aspx#3)] --> 
+ [!code-aspx-csharp[System.Web.DynamicData.MetaModel#3](~/samples/snippets/csharp/VS_Snippets_WebNet/System.Web.DynamicData.MetaModel/CS/GetTable.aspx)]
+ [!code-aspx-vb[System.Web.DynamicData.MetaModel#3](~/samples/snippets/visualbasic/VS_Snippets_WebNet/System.Web.DynamicData.MetaModel/VB/GetTable.aspx)]
  
  [!code-csharp[System.Web.DynamicData.MetaModel#4](~/samples/snippets/csharp/VS_Snippets_WebNet/System.Web.DynamicData.MetaModel/CS/GetTable.aspx.cs#4)]
  [!code-vb[System.Web.DynamicData.MetaModel#4](~/samples/snippets/visualbasic/VS_Snippets_WebNet/System.Web.DynamicData.MetaModel/VB/gettable.aspx.vb#4)]