Update find-duplicates-in-an-array

Author: ajay-dhangar

dsa-solutions/gfg-solutions/Easy problems/find-duplicates-in-an-array

@@ -1,3 +1,4 @@
+---
 id: find-duplicates-in-an-array
 title: Find Duplicates in an Array (gfg)
 sidebar_label: 0006 - Find Duplicates in an Array
@@ -9,6 +10,7 @@ tags:
   - Python
   - DSA
 description: "This tutorial covers the solution to the Find Duplicates in an Array problem from the GeeksforGeeks website, featuring implementations in Python and C++."
+---
 
 ## Problem Description