doh-csharp-4.bcl.md

@@ -16,7 +16,7 @@
     * [3-6. System.Xml.Serialization.XmlSerializer](#xmlserializer)  
     * [3-7. System.Runtime.Serialization.Json.DataContractJsonSerializer](#datacontractjsonserializer)  
 * [4. 컬렉션](#컬렉션)  
-
+    * [4-1. System.Collections.ArrayList](#arraylist)  
 
 
 -- -- --
@@ -590,3 +590,5 @@ public class JsonSerializerEx
 ```  
 
 ## 컬렉션  
+
+### ArrayList