Added README.md for Linked Lists

Author: Zanark

Competitive Coding/Linked List/README.md

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+#Linked List operations
+
+**This folder contains files that have the following programs**
+
+ 1. All BASIC Linked List operations on a Linked List based on *Pointers*
+   
+    * Adding elements at the *end* of a Linked List.
+    * Adding elements at the *begining* of a Linked List.
+    * Finding the *number of nodes* in a Linked List.
+    * Adding an element at the *middle (Mid-point Position)* of a Linked List.
+    * Adding elements at a *specific position* of a Linked List.
+    * Displaying elements of a Linked List.
+    * Deleting the element at the *middle (Mid-point Position)* of the Linked List.
+    * Deleting a *specific element* from a Linked List.
+    * Sorting the Linked List *[Increasing order]*.
+    * Merging two Sorted *[Increasing order]* Linked Lists.
+    * Reversing a Linked List.
+
+ 2. Removing Duplicate Elements from an unsorted Linked List.