Update Concrete_Immutable_Collection_Classes.md

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scala · Aug 24, 2015 · bdf5d5b · bdf5d5b
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diff --git a/cn/overviews/collections/Concrete_Immutable_Collection_Classes.md b/cn/overviews/collections/Concrete_Immutable_Collection_Classes.md
@@ -186,4 +186,3 @@ BitSet操作的运行时间是非常快的。查找测试仅仅需要固定时
     scala> map(2)
     res30: String = "two"
 
-更多详细内容参考官网：http://docs.scala-lang.org/overviews/collections/concrete-immutable-collection-classes.html