add youtube link for 94

Author: fishercoder1534

README.md

@@ -865,7 +865,7 @@ _If you like this project, please leave me a star._ ★
 |97|[Interleaving String](https://leetcode.com/problems/interleaving-string/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_97.java)|  |Hard| DP
 |96|[Unique Binary Search Trees](https://leetcode.com/problems/unique-binary-search-trees/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_96.java) | |Medium | Recursion, DP
 |95|[Unique Binary Search Trees II](https://leetcode.com/problems/unique-binary-search-trees-ii/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_95.java) |  |Medium | Recursion
-|94|[Binary Tree Inorder Traversal](https://leetcode.com/problems/binary-tree-inorder-traversal/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_94.java)| [:tv:](https://youtu.be/o_T8MswDI_Y) |Medium| Binary Tree
+|94|[Binary Tree Inorder Traversal](https://leetcode.com/problems/binary-tree-inorder-traversal/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_94.java)| [:tv:](https://youtu.be/o_T8MswDI_Y) [:tv:](https://youtu.be/QxFOR8sQuB4) |Medium| Binary Tree
 |93|[Restore IP Addresses](https://leetcode.com/problems/restore-ip-addresses/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_93.java)| |Medium | Backtracking
 |92|[Reverse Linked List II](https://leetcode.com/problems/reverse-linked-list-ii/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_92.java)|  |Medium
 |91|[Decode Ways](https://leetcode.com/problems/decode-ways/)|[Solution](../master/src/main/java/com/fishercoder/solutions/_91.java)|  |Medium| DP