Added LeetCode Search a 2D Matrix II solution

CONTRIBUTING.md

@@ -29,3 +29,7 @@
 ### Sagar Gurung
 
 - Github: https://github.com/SagarGi
+
+### Surya Shenjaya
+
+- Github: https://github.com/suryashen5

Competitive Programming/LeetCode/240. Search a 2D Matrix II.java

@@ -0,0 +1,12 @@
+class Solution {
+    public boolean searchMatrix(int[][] matrix, int target) {
+        for(int i=0;i < matrix.length;i++){
+            for(int j=0; j < matrix[i].length;j++){
+                if(matrix[i][j]==target){
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}