Update README.md

karanchawla · Jan 6, 2017 · 9c4e967 · 9c4e967
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diff --git a/challenge_8/README.md b/challenge_8/README.md
@@ -2,7 +2,7 @@ Random Pointer Linked List
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 Idea
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-You are given a  linked list, nothing unusual about that right? The kicker is that aside from the normal "next" attribute each node has, they also have a "random" attribute. The "random" attribute is essentially a reference to any other node in the linked list. For example, take a look at the linked list below.
+You are given a  linked list, nothing unusual about that right? The kicker is that aside from the normal "next" attribute each node has, they also have a "random" attribute. The "random" attribute is essentially a reference to any other node in the linked list. For example, take a look at the linked list below. Don't know what a linked list is? start [here](https://www.cs.cmu.edu/~adamchik/15-121/lectures/Linked%20Lists/linked%20lists.html)
 
 ![](linkedlist.jpg)