Update README with LeetCode Daily Challenge

Author: jeremymanning

README.md

@@ -132,6 +132,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab
 | October 27, 2024 | [1277](https://leetcode.com/problems/count-square-submatrices-with-all-ones/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1277) | 🟡 Medium |
 | October 28, 2024 | [2501](https://leetcode.com/problems/longest-square-streak-in-an-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2501) | 🟡 Medium |
 | October 29, 2024 | [2684](https://leetcode.com/problems/maximum-number-of-moves-in-a-grid/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2684) | 🟡 Medium |
+| October 30, 2024 | [1671](https://leetcode.com/problems/minimum-number-of-removals-to-make-mountain-array/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/1671) | 🔴 Hard |
 
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