Update year tag for 2024

README.md

@@ -33,7 +33,7 @@ Copy the `Day01.kt` solution file for the following days and increment the day n
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 > Remember to join the Kotlin contest!
 >
-> To do that, edit your project's _About_ section with ⚙️ icon and add the `aoc-2023-in-kotlin` topic to your project.
+> To do that, edit your project's _About_ section with ⚙️ icon and add the `aoc-2024-in-kotlin` topic to your project.
 >
 > **We will find your repository and count you in our giveaway.**