Additional resources for tree and graph algorithms (#3216)

* Additional resources for tree and graph algorithms 

Additional resources for tree and graph algorithms for technical interviews

* Update content/roadmaps/106-javascript/content/104-javascript-data-structures/readme.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/106-javascript/content/104-javascript-data-structures/readme.md

@@ -4,3 +4,5 @@ A Data structure is a format to organize, manage and store data in a way that al
 
 <ResourceGroupTitle>Free Content</ResourceGroupTitle>
 <BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.freecodecamp.org/news/data-structures-in-javascript-with-examples/#what-is-a-data-structure'> Data structures</BadgeLink>
+<BadgeLink colorScheme='purple' badgeText='Watch' href='https://youtu.be/fAAZixBzIAI'>Binary Tree Algorithms for Technical Interviews - Full Course</BadgeLink>
+<BadgeLink colorScheme='purple' badgeText='Watch' href='https://youtu.be/tWVWeAqZ0WU'>Graph Algorithms for Technical Interviews - Full Course</BadgeLink>