Update README with LeetCode Daily Challenge

Author: jeremymanning

README.md

@@ -146,6 +146,7 @@ _**Note:** Our group is currently taking a break from grinding leetcode. The tab
 | November 10, 2024 | [3097](https://leetcode.com/problems/shortest-subarray-with-or-at-least-k-ii/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/3097) | 🟡 Medium |
 | November 11, 2024 | [2601](https://leetcode.com/problems/prime-subtraction-operation/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2601) | 🟡 Medium |
 | November 12, 2024 | [2070](https://leetcode.com/problems/most-beautiful-item-for-each-query/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2070) | 🟡 Medium |
+| November 13, 2024 | [2563](https://leetcode.com/problems/count-the-number-of-fair-pairs/description/?envType=daily-question) | [Click here](https://github.com/ContextLab/leetcode-solutions/tree/main/problems/2563) | 🟡 Medium |
 
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