file names corrected

Author: anildervis

docs/dynamic-programming/BitmaskDP.md renamed to docs/dynamic-programming/bitmask_dp.md

@@ -11,23 +11,23 @@ tags:
 ## Introduction
 Next section is about the *Greedy Algorithms* and *Dynamic Programming*. It will be quite a generous introduction to the concepts and will be followed by some common problems.
 
-- [Greedy Algorithms](./GreedyAlgorithms.md)
+- [Greedy Algorithms](./greedy_algorithms.md)
 
-- [Dynamic Programming](./DynamicProgramming.md)
+- [Dynamic Programming](./dynamic_programming.md)
 
-- [Common DP Problems](./CommonDPProblems.md)
+- [Common DP Problems](./common_dp_problems.md)
 
-- [Bitmask DP](./BitmaskDP.md)
+- [Bitmask DP](./bitmask_dp.md)
 
-- [DP on Rooted Trees](./DPonRootedTrees.md)
+- [DP on Rooted Trees](./dp_on_rooted_trees.md)
 
-- [DP on Directed Acyclic Graphs](./DPonDirectedAcyclicGraphs.md)
+- [DP on Directed Acyclic Graphs](./dp_on_directed_acyclic_graphs.md)
 
-- [Digit DP](./DigitDP.md)
+- [Digit DP](./digit_dp.md)
 
-- [Walk Counting using Matrix Exponentiation](./WalkCountingwMatrix.md)
+- [Walk Counting using Matrix Exponentiation](./walk_counting_with_matrix.md)
 
-- [Tree Child-Sibling Notation](./TreeChildSiblingNotation.md)
+- [Tree Child-Sibling Notation](./tree_child_sibling_notation.md)
 
 ## References