add week 2 whiteboards

Week 2.md

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+## Week 1
+### Problem 1
+
+Write a Java program to insert an element (specific index and value) into an array. Shifting the rest of the elements to the right
+
+```
+Index : 2
+Value : 5
+Original Array : [25, 14, 56, 15, 36, 56, 77, 18, 29, 49]                                                     
+New Array: [25, 14, 5, 56, 15, 36, 56, 77, 18, 29] 
+```
+
+### Problem 3
+
+Write a Java program to remove a specific element(by index) from an array.
+
+```
+Index : 1
+Original Array : [25, 14, 56, 15, 36, 56, 77, 18, 29, 49]                                                     
+After removing the second element: [25, 56, 15, 36, 56, 77, 18, 29, 49, 49] 
+
+```