Update index.md

contrib/ds-algorithms/index.md

@@ -1,5 +1,11 @@
 # List of sections
 
-- [Section title](filename.md)
+- [Queues in Python](Queues.md)
-- [Sorting Algorithms](sorting-algorithms.md)
 - [Graphs](graph.md)
+- [Sorting Algorithms](sorting-algorithms.md)
+- [Recursion and Backtracking](recursion.md)
+- [Divide and Conquer Algorithm](divide-and-conquer-algorithm.md)
+- [Searching Algorithms](searching-algorithms.md)
+- [Greedy Algorithms](greedy-algorithms.md)
+- [Dynamic Programming](dynamic-programming.md)
+