Update README.md

README.md

@@ -12,7 +12,7 @@ You can find the Kattis course page here https://lth.kattis.com/courses
 | 2023-10-26 | Week 2   | Data Structures and Complexity | Prime Factorization and Union-Find
 | 2023-11-09 | Week 3   | Graphs |
 | 2023-11-16 | Week 4   | Dynamic Programming |
-| 2023-11-23 | Week 5   | Fenwick and Segment Trees |
+| 2023-11-23 | Week 5   | Fenwick and Segment Trees | Implement an easy to use Fenwick Tree
 | 2023-11-30 | Week 6   | Geometry, Number Theory, and Probability |
 | 2023-12-07 | Week 7   | Tries, Suffix Arrays, and Strings |
 | 2023-12-14 | Week 8   | Dynamic Programming Revisited |