Incorrect information in README.md

[ghost]

FILE: README.md
CONTEXT: "...a programming puzzles contest is published every day for twenty-four days."
SUGGESTED CHANGE: Advent of Code is 25 days long, may want to replace twenty-four with twenty-five.

From adventofcode.com/2023/day1 (most recent event):

"You've been doing this long enough to know that to restore snow operations, you need to check all fifty stars by December 25th.

Collect stars by solving puzzles. Two puzzles will be made available on each day in the Advent calendar; the second puzzle is unlocked when you complete the first. Each puzzle grants one star. Good luck!"

From adventofcode.com/2015/day1 (first event):

"Santa was hoping for a white Christmas, but his weather machine's "snow" function is powered by stars, and he's fresh out! To save Christmas, he needs you to collect fifty stars by December 25th.

Collect stars by helping Santa solve puzzles. Two puzzles will be made available on each day in the Advent calendar; the second puzzle is unlocked when you complete the first. Each puzzle grants one star. Good luck!"

[ghost]

I didn't think this minor issue warranted a fork + PR, but if this is incorrect, I am happy to go through that process.

[hsz]

Thanks!