Update README - Topic Tags

Author: hogan-tech

README.md

@@ -121,6 +121,7 @@ Feedback / Questions → open an Issue or reach out on [LinkedIn](https://www.li
 ## Math
 |  |
 | ------- |
+| [2174-next-greater-numerically-balanced-number](https://github.com/hogan-tech/leetcode-solution/tree/master/2174-next-greater-numerically-balanced-number) |
 | [3768-check-if-digits-are-equal-in-string-after-operations-i](https://github.com/hogan-tech/leetcode-solution/tree/master/3768-check-if-digits-are-equal-in-string-after-operations-i) |
 ## String
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@@ -154,4 +155,20 @@ Feedback / Questions → open an Issue or reach out on [LinkedIn](https://www.li
 |  |
 | ------- |
 | [0234-palindrome-linked-list](https://github.com/hogan-tech/leetcode-solution/tree/master/0234-palindrome-linked-list) |
+## Hash Table
+|  |
+| ------- |
+| [2174-next-greater-numerically-balanced-number](https://github.com/hogan-tech/leetcode-solution/tree/master/2174-next-greater-numerically-balanced-number) |
+## Backtracking
+|  |
+| ------- |
+| [2174-next-greater-numerically-balanced-number](https://github.com/hogan-tech/leetcode-solution/tree/master/2174-next-greater-numerically-balanced-number) |
+## Counting
+|  |
+| ------- |
+| [2174-next-greater-numerically-balanced-number](https://github.com/hogan-tech/leetcode-solution/tree/master/2174-next-greater-numerically-balanced-number) |
+## Enumeration
+|  |
+| ------- |
+| [2174-next-greater-numerically-balanced-number](https://github.com/hogan-tech/leetcode-solution/tree/master/2174-next-greater-numerically-balanced-number) |
 <!---LeetCode Topics End-->