Update uniqueBString.java

Author: satyam878

LeetCode/uniqueBString.java

@@ -1,3 +1,6 @@
+/* Given an array of strings nums containing n unique binary strings each of length n, 
+return a binary string of length n that does not appear in nums. If there are multiple answers, you may return any of them.
+https://leetcode.com/problems/find-unique-binary-string/*/
 class Solution {
     public String findDifferentBinaryString(String[] nums) {
 
@@ -25,4 +28,4 @@ public String findDifferentBinaryString(String[] nums) {
         return ans1;
 
     }
-}
+}