Update README.md

Author: MitkoVtori

README.md

@@ -23,7 +23,7 @@ Course Exercise Lecturer - **[Diyan Kalaydzhiev](https://github.com/DiyanKalaydz
 | <a href="Advanced/Exam Preparation">Exam Preparation</a> | <a href="OOP/8.Iterators and Generators">Iterators and Generators</a> |
 | <a href="Advanced/Regular Exam">Regular Exam</a> | <a href="OOP/9.Decorators">Decorators</a> |
 |  | <a href="OOP/A.Testing">Testing</a> |
-|  | Design Patterns |
-|  | Exam Preparation |
+|  | <a href="OOP/B.Design Patterns">Design Patterns</a> |
+|  | <a href="OOP/C.Exam Preparation">Exam Preparation</a> |
 |  | Workshop |
 |  | Regular Exam |