updating DIRECTORY.md

Author: github-actions

DIRECTORY.md

@@ -224,6 +224,7 @@
   * [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)
+  * [KMPPatternSearching](https://github.com/TheAlgorithms/Javascript/blob/master/String/KMPPatternSearching.js)
   * [LevenshteinDistance](https://github.com/TheAlgorithms/Javascript/blob/master/String/LevenshteinDistance.js)
   * [LevenshteinDistance](https://github.com/TheAlgorithms/Javascript/blob/master/String/LevenshteinDistance.test.js)
   * [MaxCharacter](https://github.com/TheAlgorithms/Javascript/blob/master/String/MaxCharacter.js)
@@ -237,6 +238,7 @@
     * [CheckAnagram](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/CheckAnagram.test.js)
     * [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)
+    * [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)
     * [ReverseString](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/ReverseString.test.js)
     * [ReverseWords](https://github.com/TheAlgorithms/Javascript/blob/master/String/test/ReverseWords.test.js)