updating DIRECTORY.md

Author: github-actions

Diff for: DIRECTORY.md

@@ -648,6 +648,8 @@
     * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_48/sol1.py)
   * Problem 49
     * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_49/sol1.py)
+  * Problem 51
+    * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_51/sol1.py)
   * Problem 52
     * [Sol1](https://github.com/TheAlgorithms/Python/blob/master/project_euler/problem_52/sol1.py)
   * Problem 53
@@ -682,6 +684,8 @@
   * [Validate Solutions](https://github.com/TheAlgorithms/Python/blob/master/project_euler/validate_solutions.py)
 
 ## Quantum
+  * [Q1](https://github.com/TheAlgorithms/Python/blob/master/quantum/q1.py)
+  * [Q2](https://github.com/TheAlgorithms/Python/blob/master/quantum/q2.py)
   * [Single Qubit Measure](https://github.com/TheAlgorithms/Python/blob/master/quantum/single_qubit_measure.py)
 
 ## Scheduling