Update README.md

SEPT CHALLENGES/README.md

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 |SEP 1|[Count Good Nodes in a Binary Tree](https://leetcode.com/problems/count-good-nodes-in-binary-tree/)|[LINK](https://github.com/utkarsh006/LeetCode-Grind/blob/main/SEPT%20CHALLENGES/SEP%201_%20Count%20Good%20Nodes.cpp)|Binary Trees|
 |SEP 2|[Average of Levels in Binary Tree](https://leetcode.com/problems/average-of-levels-in-binary-tree/)|[LINK](https://github.com/utkarsh006/LeetCode-Grind/blob/main/SEPT%20CHALLENGES/SEP%202_Average%20of%20Levels%20in%20Binary%20Tree.cpp)|Binary Trees|
 |SEP 3|[Numbers With Same Consecutive Differences](https://leetcode.com/problems/count-good-nodes-in-binary-tree/)|[LINK](https://github.com/utkarsh006/LeetCode-Grind/blob/main/SEPT%20CHALLENGES/SEP%203_%20Numbers%20With%20Same%20Consecutive%20Differences.cpp)|Backtracking|
-|SEP 4|[Vertical Order Traversal of a Binary Tree](https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/)|[LINK](https://github.com/utkarsh006/LeetCode-Grind/blob/main/SEPT%20CHALLENGES/SEP%204_VerticalOrderTraversal.cpp)|Binary Trees|
+|SEP 4|[Vertical Order Traversal of a Binary Tree](https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/)|[LINK](https://github.com/utkarsh006/LeetCode-Grind/blob/main/SEPT%20CHALLENGES/SEP%204_VerticalOrderTraversal.cpp)|Binary Trees|
+|SEP 5|[N-ary Tree Level Order Traversal](https://leetcode.com/problems/add-one-row-to-tree/)|[LINK]()||
+|SEP 6|[Binary Tree Pruning](https://leetcode.com/problems/binary-tree-pruning/)|[LINK]()||
+|SEP 7|[Construct String from Binary Tree](https://leetcode.com/problems/construct-string-from-binary-tree/)|[LINK]()||
+|SEP 8|[Binary Tree Inorder Traversal](https://leetcode.com/problems/binary-tree-inorder-traversal/)|[LINK]()||
+|SEP 9|[The Number of Weak Characters in the Game](https://leetcode.com/problems/the-number-of-weak-characters-in-the-game/)|[LINK]()||
+|SEP 10|[Best Time to Buy and Sell Stock IV](https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv/)|[LINK]()||
+|SEP 11|[Maximum Performance of a Team](https://leetcode.com/problems/maximum-performance-of-a-team/)|[LINK]()||
+|SEP 12|[Bag of Tokens](https://leetcode.com/problems/bag-of-tokens/)|[LINK]()||
+|SEP 13|[UTF-8 Validation](https://leetcode.com/problems/utf-8-validation/)|[LINK]()||
+|SEP 14|[Pseudo-Palindromic Paths in a Binary Tree](https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree/)|[LINK]()||
+|SEP 15|[Find Original Array From Doubled Array](https://leetcode.com/problems/find-original-array-from-doubled-array/)|[LINK]()||
+|SEP 16|[Maximum Score from Performing Multiplication Operations](https://leetcode.com/problems/maximum-score-from-performing-multiplication-operations/)|[LINK]()||
+|SEP 17|[Palindrome Pairs](https://leetcode.com/problems/palindrome-pairs/)|[LINK]()||
+|SEP 18|[Trapping Rain Water](https://leetcode.com/problems/trapping-rain-water/)|[LINK]()||
+|SEP 19|[Find Duplicate File in System](https://leetcode.com/problems/find-duplicate-file-in-system/)|[LINK]()||
+|SEP 20|[Maximum Length of Repeated Subarray](https://leetcode.com/problems/maximum-length-of-repeated-subarray/)|[LINK]()||
+|SEP 21|[Sum of Even Numbers After Queries](https://leetcode.com/problems/sum-of-even-numbers-after-queries/)|[LINK]()||
+|SEP 22|[Reverse Words in a String III](https://leetcode.com/problems/reverse-words-in-a-string-iii/)|[LINK]()||
+|SEP 23|[Concatenation of Consecutive Binary Numbers](https://leetcode.com/problems/concatenation-of-consecutive-binary-numbers/)|[LINK]()||
+|SEP 24|[Path Sum II](https://leetcode.com/problems/path-sum-ii/)|[LINK]()||
+|SEP 25|[Design Circular Queue](https://leetcode.com/problems/design-circular-queue/)|[LINK]()||
+|SEP 26|[Satisfiability of Equality Equations](https://leetcode.com/problems/satisfiability-of-equality-equations/)|[LINK]()||
+|SEP 27|[Push Dominoes](https://leetcode.com/problems/push-dominoes/)|[LINK]()||
+|SEP 28|[Remove Nth Node From End of List](https://leetcode.com/problems/remove-nth-node-from-end-of-list/)|[LINK]()||
+|SEP 29|[Find K Closest Elements](https://leetcode.com/problems/find-k-closest-elements/)|[LINK]()||
+|SEP 30|[The Skyline Problem](https://leetcode.com/problems/the-skyline-problem/)|[LINK]()||
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