updated README.md

README.md

@@ -1,7 +1,35 @@
 ```
 Directory Tree
 
+
 .
+├── BitManipulation
+│   ├── binaryWatch.java
+│   ├── countingBits.java
+│   ├── hammingDistance.java
+│   ├── maximumProductOfWordLengths.java
+│   ├── numberOf1Bits.java
+│   ├── sumOfTwoIntegers.java
+│   └── utf-8Validation.java
+├── DepthFirstSearch
+│   ├── balancedBinaryTree.java
+│   ├── convertSortedArrayToBinarySearchTree.java
+│   ├── maximumDepthOfABinaryTree.java
+│   ├── numberOfIslands.java
+│   ├── populatingNextRightPointersInEachNode.java
+│   └── sameTree.java
+├── HashTable
+│   ├── binaryTreeVerticalOrderTraversal.java
+│   ├── findTheDifference.java
+│   ├── groupAnagrams.java
+│   ├── islandPerimeter.java
+│   ├── loggerRateLimiter.java
+│   ├── maximumSizeSubarraySumEqualsK.java
+│   ├── minimumWindowSubstring.java
+│   ├── sparseMatrixMultiplication.java
+│   ├── strobogrammaticNumber.java
+│   ├── twoSum.java
+│   └── uniqueWordAbbreviation.java
 ├── LinkedList
 │   ├── addTwoNumbers.java
 │   ├── deleteNodeInALinkedList.java
@@ -10,29 +38,26 @@ Directory Tree
 │   ├── plusOneLinkedList.java
 │   ├── README.md
 │   └── reverseLinkedList.java
-├── longestPalindrome.java
-├── palindromeLinkedList.java
-├── palindromePermutation.java
 ├── README.md
-├── String
-│   ├── addBinary.java
-│   ├── countAndSay.java
-│   ├── decodeWays.java
-│   ├── editDistance.java
-│   ├── integerToEnglishWords.java
-│   ├── longestPalindrome.java
-│   ├── longestSubstringWithAtMostKDistinctCharacters.java
-│   ├── minimumWindowSubstring.java
-│   ├── multiplyString.java
-│   ├── oneEditDistance.java
-│   ├── palindromePermutation.java
-│   ├── README.md
-│   ├── reverseVowelsOfAString.java
-│   ├── romanToInteger.java
-│   ├── validPalindrome.java
-│   └── validParentheses.java
-└── validPalindrome.java
+└── String
+    ├── addBinary.java
+    ├── countAndSay.java
+    ├── decodeWays.java
+    ├── editDistance.java
+    ├── integerToEnglishWords.java
+    ├── longestPalindrome.java
+    ├── longestSubstringWithAtMostKDistinctCharacters.java
+    ├── minimumWindowSubstring.java
+    ├── multiplyString.java
+    ├── oneEditDistance.java
+    ├── palindromePermutation.java
+    ├── README.md
+    ├── reverseVowelsOfAString.java
+    ├── romanToInteger.java
+    ├── validPalindrome.java
+    └── validParentheses.java
+
+5 directories, 48 files
 
-2 directories, 28 file
 
 ```