updating DIRECTORY.md

Author: github-actions

DIRECTORY.md

@@ -101,6 +101,8 @@
       * [Test Longest Substring K Repeating Chars](https://github.com/BrianLusina/PythonSnips/blob/master/algorithms/sliding_window/longest_substring_with_k_repeating_chars/test_longest_substring_k_repeating_chars.py)
     * Longest Substring Without Repeating Characters
       * [Test Longest Substring Without Repeating Characters](https://github.com/BrianLusina/PythonSnips/blob/master/algorithms/sliding_window/longest_substring_without_repeating_characters/test_longest_substring_without_repeating_characters.py)
+    * Repeated Dna Sequences
+      * [Test Repeated Dna Sequences](https://github.com/BrianLusina/PythonSnips/blob/master/algorithms/sliding_window/repeated_dna_sequences/test_repeated_dna_sequences.py)
   * Sorting
     * Insertionsort
       * [Test Insertion Sort](https://github.com/BrianLusina/PythonSnips/blob/master/algorithms/sorting/insertionsort/test_insertion_sort.py)