solves invert binary tree

Author: anishLearnsToCode

README.md

@@ -68,7 +68,7 @@
 | 217 | [Contains Duplicate](https://leetcode.com/problems/contains-duplicate) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ContainsDuplicate.java) |
 | 219 | [Contains Duplicate II](https://leetcode.com/problems/contains-duplicate-ii) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/ContainsDuplicateII.java) |
 | 225 | [Implement Stack using Queues](https://leetcode.com/problems/implement-stack-using-queues) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/MyStack.java) |
-| 226 | [Invert Binary Tree](https://leetcode.com/problems/invert-binary-tree) | Easy |
+| 226 | [Invert Binary Tree](https://leetcode.com/problems/invert-binary-tree) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](https://github.com/anishLearnsToCode/leetcode-algorithms/blob/master/src/InvertBinaryTree.java) |
 | 231 | [Power of Two](https://leetcode.com/problems/power-of-two) | Easy |
 | 232 | [Implement Queue Using Stacks]() | Easy |
 | 234 | [Palindrome Linked Lists](https://leetcode.com/problems/palindrome-linked-list) | Easy |