update readme

Author: hogan-tech

Question List.txt renamed to .github/Question List.txt

@@ -5,4 +5,5 @@
 0005-longest-palindromic-substring python medium
 
 2610-convert-an-array-into-a-2d-array-with-conditions python medium
-2125-number-of-laser-beams-in-a-bank python medium
+2125-number-of-laser-beams-in-a-bank python medium
+2870-minimum-number-of-operations-to-make-array-empty python medium

README.md

@@ -336,6 +336,7 @@ The solutions are organized as follows:
 |2009|[Minimum Number of Operations to Make Array Continuous](https://leetcode.com/problems/minimum-number-of-operations-to-make-array-continuous/) | [Python](./2009-minimum-number-of-operations-to-make-array-continuous/2009-minimum-number-of-operations-to-make-array-continuous.py) | [Hard](./2009-minimum-number-of-operations-to-make-array-continuous/README.md) |
 |2038|[Remove Colored Pieces if Both Neighbors are the Same Color](https://leetcode.com/problems/remove-colored-pieces-if-both-neighbors-are-the-same-color/) | [Python](./2038-remove-colored-pieces-if-both-neighbors-are-the-same-color/2038-remove-colored-pieces-if-both-neighbors-are-the-same-color.py) | [Medium](./2038-remove-colored-pieces-if-both-neighbors-are-the-same-color/README.md) |
 |2050|[Number of Different Integers in a String](https://leetcode.com/problems/number-of-different-integers-in-a-string/) | [Python](./2050-number-of-different-integers-in-a-string/2050-number-of-different-integers-in-a-string.py) | [Easy](./2050-number-of-different-integers-in-a-string/README.md) |
+|2125|[Number of Laser Beams in a Bank](https://leetcode.com/problems/number-of-laser-beams-in-a-bank/) | [Python](./2125-number-of-laser-beams-in-a-bank/2125-number-of-laser-beams-in-a-bank.py) | [Medium](./2125-number-of-laser-beams-in-a-bank/README.md) |
 |2141|[Maximum Running Time of N Computers](https://leetcode.com/problems/maximum-running-time-of-n-computers/) | [Python](./2141-maximum-running-time-of-n-computers/2141-maximum-running-time-of-n-computers.py)| [Hard](./2141-maximum-running-time-of-n-computers/README.md)|
 |2147|[Number of Ways to Divide a Long Corridor](https://leetcode.com/problems/number-of-ways-to-divide-a-long-corridor/) | [Python](./2147-number-of-ways-to-divide-a-long-corridor/2147-number-of-ways-to-divide-a-long-corridor.py)| [Hard](./2147-number-of-ways-to-divide-a-long-corridor/README.md) |
 |2251|[Number of Flowers in Full Bloom](https://leetcode.com/problems/number-of-flowers-in-full-bloom/) | [Python](./2251-number-of-flowers-in-full-bloom/2251-number-of-flowers-in-full-bloom.py)| [Hard](./2251-number-of-flowers-in-full-bloom/README.md) |
@@ -417,7 +418,7 @@ The solutions are organized as follows:
 |2833|[Furthest Point from Origin](https://leetcode.com/problems/furthest-point-from-origin/) | [Python](./2833-furthest-point-from-origin/2833-furthest-point-from-origin.py)| [Easy](./2833-furthest-point-from-origin/README.md)|
 |2834|[Find the Minimum Possible Sum of a Beautiful Array](https://leetcode.com/problems/find-the-minimum-possible-sum-of-a-beautiful-array/) | [Python](./2834-find-the-minimum-possible-sum-of-a-beautiful-array/2834-find-the-minimum-possible-sum-of-a-beautiful-array.py)| [Medium](./2834-find-the-minimum-possible-sum-of-a-beautiful-array/README.md)|
 |2849|[Determine if a Cell is Reachable at a Given Time](https://leetcode.com/problems/determine-if-a-cell-is-reachable-at-a-given-time/) | [Python](./2849-determine-if-a-cell-is-reachable-at-a-given-time/2849-determine-if-a-cell-is-reachable-at-a-given-time.py)| [Medium](./2849-determine-if-a-cell-is-reachable-at-a-given-time/README.md)|
-|2125|[Number of Laser Beams in a Bank](https://leetcode.com/problems/number-of-laser-beams-in-a-bank/) | [Python](./2125-number-of-laser-beams-in-a-bank/2125-number-of-laser-beams-in-a-bank.py) | [Medium](./2125-number-of-laser-beams-in-a-bank/README.md) |
+|2870|[Minimum Number of Operations to Make Array Empty](https://leetcode.com/problems/minimum-number-of-operations-to-make-array-empty/) | [Python](./2870-minimum-number-of-operations-to-make-array-empty/2870-minimum-number-of-operations-to-make-array-empty.py) | [Medium](./2870-minimum-number-of-operations-to-make-array-empty/README.md) |
 
 
 ## How to Use