updating DIRECTORY.md

Author: github-actions

DIRECTORY.md

@@ -326,6 +326,7 @@
  * [CheckWordOccurrence](https://github.com/TheAlgorithms/Javascript/blob/master/String/CheckWordOccurrence.js)
  * [CheckWordOcurrence](https://github.com/TheAlgorithms/Javascript/blob/master/String/CheckWordOcurrence.test.js)
  * [CreatePermutations](https://github.com/TheAlgorithms/Javascript/blob/master/String/CreatePermutations.js)
+ * [DiceCoefficient](https://github.com/TheAlgorithms/Javascript/blob/master/String/DiceCoefficient.js)
  * [FormatPhoneNumber](https://github.com/TheAlgorithms/Javascript/blob/master/String/FormatPhoneNumber.js)
  * [FormatPhoneNumber](https://github.com/TheAlgorithms/Javascript/blob/master/String/FormatPhoneNumber.test.js)
  * [GenerateGUID](https://github.com/TheAlgorithms/Javascript/blob/master/String/GenerateGUID.js)
@@ -346,6 +347,7 @@
  * [CheckPalindrome](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/CheckPalindrome.test.js)
  * [CheckPangram](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/CheckPangram.test.js)
  * [CreatePermutations](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/CreatePermutations.test.js)
+ * [DiceCoefficient](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/DiceCoefficient.test.js)
  * [HammingDistance](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/HammingDistance.test.js)
  * [KMPPatternSearching](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/KMPPatternSearching.test.js)
  * [PatternMatching](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/PatternMatching.test.js)