docs(algorithms, graphs): hyphenate depth-first search

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: BrianLusina

algorithms/graphs/reconstruct_itinerary/README.md

@@ -31,7 +31,7 @@ a single string.
 
 ## Related Topics
 
-- Depth First Search
+- Depth-First Search
 - Graph
 - Eulerian Circuit